Migrations between Japan and Korea

People have been crossing between the Korean peninsula and the Japanese archipelago from the earliest of times. In modern times, Japanese began crossing over to the Korean peninsula in significant numbers from the time the two countries signed the 1876 Treaty of Kanghwa (in Korean Kanghwado choyak 강화도조약; in Japanese the Treaty of Amity or Nitchoshūkō jōyaku 日朝修好条約) that opened three ports in Korea for Japanese residence.Footnote ⁶ Initially, Japanese settlers concentrated in the southern provinces of the peninsula. From the 1930s, however, when Japan's colonial policies in Korea began to utilize Korea's war-related industrial resources, a greater percentage of this population migrated to the north. At the end of the war, roughly 30 percent of Japanese settlers were residing in Korea's northern provinces. The postwar division of the peninsula disproportionately frustrated their repatriation attempts after their country surrendered.

Koreans began to migrate to the Japanese islands in substantial numbers after Japan annexed the peninsula in 1910. Whereas in 1910 only 2,600 Koreans lived in Japan, by 1922 this number had risen to 90,741. In 1926, just three years after the Great Kanto earthquake, it had reached 241,657. By the end of the war, estimates place around 2 million Koreans as residing in Japan (Nishinarita Reference Nishinarita1997, p. 42). Koreans at first came primarily for education purposes, as the Japanese had yet to develop the education system beyond the elementary level on the peninsula. Around the time of the First World War, the booming wartime years created a labor shortage that became the primary draw for Korean migration (Pak, Yamada, and Yang Reference Kyǒngsik 朴慶植, 山田昭次 and 梁泰昊1993).Footnote ⁷ The economic depression that followed the war's end left many Korean laborers impoverished after their relatively stable regular employment turned to the less stable day labor. The Naimushō keihōkyoku (Homeland Warning Bureau 内務省警報局) reported that in 1922 as many as 13,099 Koreans were dependent on day labor against 6,626 who enjoyed regular fulltime employment. By 1933, these numbers had increased dramatically to reach 124,806 day laborers against 65,707 regularly employed Koreans. The Asian and Pacific wars brought increasing waves of Koreans to Japan's shores to fill positions vacated by Japanese males sent to the battlefields. A Japanese labor mobility plan (Rōdō dōin keikaku 労働動員計画) projected gathering as many as 1.06 million Koreans for labor-related purposes between the years 1939 and 1945. While correct figures are difficult to calculate estimates range from between 800,000 and 900,000 Koreans having labored for the Japanese during this period.Footnote ⁸ Women were also included as laborers as well as “comfort” providers for the Japanese military.Footnote ⁹ From 1938, Koreans also began to be admitted into the Japanese military as both soldiers and laborers.

Postwar belligerence

Even though the Allies designated May 8, 1945 as V-E(urope) Day, the day when peace was restored in Europe, sporadic fighting continued in some formerly occupied territories on the continent in the months that followed. Keith Lowe writes that “…the war did not simply stop with Hitler's defeat. A conflict on the scale of the Second World War, with all the smaller civil disputes that it encompassed, took months, if not years, to come to a halt, and the end came in different times in different parts of Europe” (2012, p. xiv). Germany's defeat also initiated dangerous people movements over both land and sea that were unprecedented in human history. Richard Bessel writes that 16.5 million Germans in Eastern Europe alone greeted the end of their war at a location different from where they would have to relocate. The Allied forces estimated that over 11 million more displaced Europeans were scattered across the continent at this time (Bessel Reference Bessel2009, pp. 68–69, 256).Footnote ¹⁰ These numbers might not have included the many peoples forced to vacate their homes after national borders were redrawn. These land transfers, which severed as much as “one-fifth of prewar German territory,” initiated one of the “largest forced removals of human being in world history” (Bessel Reference Bessel2009, pp. 210–11, 212). Some people were forced to relocate several times when they discovered that their prewar residence was no longer available to them, the country from which they were displaced no longer welcomed them. Bessel also writes of the innocent victims among the German people who “became targets for revenge for things that others had done.” Here revenge was acted out in the form of rape, relocation, and murder at the hands of the victors (ibid., pp. 167–68).

In Asia as well, the wars in the Pacific did not end with the emperor's appeal in his August 15 “Gyokuon hōsō” 玉音放送 [Jewel voice broadcast] for Japanese to “endure the unendurable and suffer what is insufferable” [Omomuku tokoro taegataki wo ta e shinobigataki wo shinobi, 趨ク所堪ヘ難キヲ堪ヘ忍ヒ難キヲ忍ヒ]. In the days that followed, Hirohito followed up this broadcast by dispatching members of the royal family to the war fronts and by issuing a “Rescript Addressed to Our Soldiers and Sailors Concerning Surrender” to explain to the military his decision to surrender at this time (Barshay Reference Barshay2013, p. 9). Ronald H. Spector, whose research looks at post-Pacific War belligerence in Asia, writes that any peace at this time was “at best a brief interlude.” He explains: “1945–46 in Asia may have appeared to many not as a time when the war ended, but as a time when the various protagonists switched sides” (Spector Reference Spector2007, p. xi). While the majority of Japanese accepted the inevitable, and even welcomed the end of the miseries caused by their country's long war, a minority of them did not; they sought to continue the battles. Some might not have heard the words of their emperor; others deliberately chose to continue fighting in defiance of the imperial directive.Footnote ¹¹ While some reasoned their obstinance as a way to prepare for the next big war they saw looming on the horizon, others joined postwar battles that broke out around East Asia.Footnote ¹² Certain members of the Japanese military stationed in Japan's Asian territories were particularly insubordinate in refusing to follow directives from the U.S. occupying forces.

The relocation of displaced peoples, while less in numbers than those of Europe, nonetheless presented Asia with a serious problem. Estimates generally set the number of overseas Japanese at 6.9 million (roughly half civilian and half military) at the conclusion of the Pacific War. Of these, about one million Japanese settlers and military resided on the Korean peninsula.Footnote ¹³ Hundreds of thousands of men in northern Soviet Korea and Manchuria, areas that came under Soviet control, were forcibly transported as laborers to various camps across the Soviet Union before being repatriated in the 1950s. Estimates of Koreans in Japan and Manchuria, the two major areas of displaced Koreans, reached between three and four million.Footnote ¹⁴ One difference between the two peoples was that while almost all Japanese were expected to return to their homeland, Koreans were given the choice of either remaining in Japan or returning to the Korean peninsula. Both peoples included many who prior to this time had no recollection of their ethnic homeland, with some believing that their adopted residence was their true “homeland.”

Both Germans and Japanese returned to bombed out cities whose residents faced acute shortages of the basic needs to restart their lives.Footnote ¹⁵ For Japan-based Koreans, it would be reasonable to expect that repatriating to the peninsula would have been the more attractive option. Southern Korean cities (save for Pusan which sustained minimal war damage), where the overwhelming majority of Japan-based Koreans considered home, had been left virtually unscathed by the war. While it is true that the majority of Koreans did return to the peninsula, it is also true that a sizeable number chose to stay.Footnote ¹⁶ We can imagine Koreans considering whether to return entertaining concerns such as the following: Would Koreans welcome them as fellow victims or shun them as enemy-tainted traitors? Would they be able to procure the basic living essentials – a home, food, and employment – to start their lives anew? Koreans who had embraced leftist ideological beliefs in Japan might have wondered whether this could work against them in an increasingly more conservative southern Korea, the home region for many. Finally, younger Koreans who had been raised in Japanese society might have questioned whether their Korean linguistic and social skills would adequately allow them to adjust into a society that was essentially “foreign” to them.Footnote ¹⁷

Then there was the danger element. News of violence on the waters leading to their Korean homeland, and on the peninsula itself, much of it in the early months between Japanese and Koreans, must also have factored into their decision. Some Koreans, anticipating the dangers involved with living in wartime Japan, opted to return to the peninsula during the war.Footnote ¹⁸ The vast majority of overseas Koreans and Japanese, however, flocked to ports close to their respective homelands, primarily Pusan and Shimonoseki, upon hearing the emperor's broadcast. The U.S. administration in Tokyo, which also oversaw the occupation in southern Korea, initiated an official repatriation program from around mid-October 1945. The impossible conditions that it set regarding what returnees could carry with them forced many returnees – both Korean and Japanese – to risk “unofficial” options for repatriating in the hope of retaining their estates. The most crippling of restrictions was the decree that returnees could legally exchange only 1,000 yen upon their arrival at port, and also confiscated “guns, cameras, gems, valuable art objects, stamp collections”.Footnote ¹⁹ The ridiculously low monetary figure was hardly adequate for them to settle and restart their lives in a new location.Footnote ²⁰ As we shall see, many Japanese and Koreans with more sizable estates deemed it worth the risk to return by unofficial, and more dangerous, repatriation means.Footnote ²¹

Dangers on the high seas

Koreans in Japan did not have to wait long before the first major sign emerged that suggested their repatriation could meet with danger, and even be life-threatening – the August 1945 sinking of the Ukishima-maru 浮島丸. Even today the cause of this incident remains in dispute. Was the ship's fatal end accidental, the result of it contacting a sea-mine? Or was it intentional, the result of explosions planted by the Japanese navy?Footnote ²² Rumors of the latter gained credibility when the basic facts of the incident, such as the number of people who had boarded the ship, were either questioned, or went unanswered.Footnote ²³ The account entered in the Report one month after the ship's sinking read as follows:

A follow-up study conducted by the U.S. authorities in Japan ruled the evidence insufficient to prove the Korean's case. It was, however, convincing enough to a number of Koreans who chose to forego repatriation and remain in Japan (Caprio Reference Caprio2019; Kim Reference Kim1994).Footnote ²⁴ This fear was hardly abeted when the seas claimed a number of other ships and their passengers mostly due to adverse weather conditions such as typhoons (Chŏng Reference Chŏng2010).Footnote ²⁵ However, human-induced incidents also occurred.

Among the human-induced incidents were those instigated by “pirates,” described in the Report as ex-kempeitai 憲兵隊, who combed the high seas in search of profitable targets. We can imagine that the unauthorized ships were seen as more attractive due to their transporting returnees carrying cargo deemed “illegal” by the Allied forces. Much of this cargo was smuggled products such as rice destined for the Japanese, but also the Korean, black markets. Occasionally travelers included information on these hazardous experiences in letters exchanged between Japan and Korea that U.S. administration officials intercepted.Footnote ²⁶ One letter dated November 3, 1945 advised the recipient on the best way to return to Japan, through a “secret [unauthorized] ship,” and on how to smuggle unauthorized goods past border inspectors. A Takemoto Hirō instructed as followed:

Another letter was written by Dewake Masako, a female Japanese living in Ishikawa, Japan, to a Dewake Yoshishiro living in Seoul and most likely preparing to repatriate. She advised his using women and bribery to smuggle goods past the American inspectors:

Information regarding the smuggling of personal finances through checkpoints on either side understandably provided the content for much of this correspondence. The following is just one example of many on this subject.

Other intercepted corespondences demonstrate that some Koreans, as well, had accumulated a small fortune to protect.

Later that month, a summary of letters included in the Record captured the severity of this problem.

More than just money, reports by U.S. authorities indicate that people from both sides were also shipping large quantities of goods, as well. A November Report also indicated that the Sewakai 世話会 was involved in more than simply providing means for Japanese to return home, but also in delivering material goods to black markets (ibid., November 3, 1945, p. 227). On another occasion, authorities uncovered on three intercepted ships a rather interesting collection of human, monetary, and material cargo.

The rice that was transported from Korea to supply Japanese black markets was a particularly delicate issue given that the Korean people were already quite sensitive over the Japanese having “stolen” rice from them during their tenure in government. One intercepted ship was found carrying a cargo of 370 straw bags of rice, valued at an estimated 237,000 yen (ibid., February 5, 11, 1946, p. 648). At this time, Korean farmers often sold their rice to black marketeers, probably due to the higher returns they received over contributing it to the occupation-organized rice collection plan. The U.S. Commanding Officer John R. Hodge first denied such actions, particularly when his men faced accusations of abeting the illegal activity. Hodge would later criticize the “Korean smugglers,” but not the U.S. soldiers under him, over their “unpatriotic” behavior (Hodge 1995, p. 113).

It is a small wonder that these ships became the pirates' main targets. They were much smaller than the authorized ships, averaging between 10 and 20 tons, and carried fewer passengers (G-2 Periodic Report November 20, 1945, p. 308).Footnote ²⁹ These factors along with the potentially higher returns must have made them particularly attractive targets to the pirates. Also, the Allied occupation authorities, in Japan primarily from the United States but also the British Commonwealth Occupation Forces (BCOF), had enough to do in dealing with land-based problems to worry about problems at sea. Crimes committed by these pirates did not stop at mere theft, but also included the murder of passengers, such as the following entry included in the Report:

That same month another refugee ship, also targeted by these gangs, met a similar fate. It sailed into Pusan Harbor with three dead and one wounded Korean. Thirty of the other passengers had been thrown overboard along the way. Witnesses blamed the Japanese crew, who were later arrested by the U.S. Military Police (ibid., November 15, 1945, p. 281).

Some letters challenged the near impossible task of estimating the extent of the crimes committed in the waters separating Japan and Korea. One letter suggested, perhaps with a little exaggeration, that by early December 1945 as many as a thousand “former members of the Japanese Military Police, [who] are active in the Korean Straits” are responsible for the deaths of up to 10,000 Koreans returning from Japan (ibid., December 4, 1945, p. 376). Another letter, citing media sources, estimated that “5,000 Koreans returning from Japan in November were robbed by bands of pirates while crossing the Strait” (ibid., December 20, 1945, p. 461). Regardless of their accuracy, we can imagine that rumors of these atrocities circulated through Korean communities, and no doubt influenced decisions regarding repatriation: the means they would use to do so, as well as whether they should repatriate at all. Some who had successfully returned home used postal mailings to warn people of the perils of repatriation. One Tei Gin Rei [Ch'oe Kin-rei?] of Pusan advised Takasaki Yuriko (quite possibly a Korean using her adopted Japanese name) in Gunma as follows: “When you return to Korea from Japan, avoid the secret [unauthorized] ships because there are many pirates at sea. The best way to go is by official steamer” (ibid., November 26, 1945, p. 339).

The Report, attempting to record these crimes, filled its pages with such actions committed by both Japanese and Koreans against travelers on the seas between Japan and Korea in the immediate aftermath of the Pacific War. However, the compilers of this information could only include information on ships that they had managed to intercept. The number of ships which escaped the authorities' eyes is, of course, difficult to estimate.Footnote ³⁰ For example, the Report included few mentions of people like Ch'oe Sǒggi who along with countless other Koreans managed to return to Japan after having repatriated to Korea (Ch'oe Reference Ch'oe2004, p. 42).Footnote ³¹ The information contained in the intercepted correspondence does offer us examples to assist in our understanding of the challenges that repatriating people faced and the ways they sought to circumvent them. It would be interesting to know whether the content from the intercepted letters helped the occupation authorities curb such actions. However, to date I have not encountered a report that suggested the occupation authorities taking advantage of this information. Another area of danger, one that proved easier to contain once the instigators had been apprehended, and either imprisoned or “advised” to return to Japan, was that which took place in Korea's metropolitan areas, and particularly Seoul.

Peninsular dangers

Others continued the war on land. Both northern and southern Korea encountered factional struggle following their country's liberation from colonial rule, much coming from different Korean groups vying to fill the power voids that evolved during the change from Japanese to Allied (U.S. and Soviet) administrations.Footnote ³² In addition, there were Japanese who chose to remain in southern Korean cities where they engaged in a wide range of criminal activities. Soon after Japan's defeat rumors began to spread that predicted a resurgence of Japanese armies to the battlefields. These appeared in two forms: one centered on Japanese regaining their lost pride, and another of their joining the United States in battle against the Soviet Union. The former spread the optimistic prediction that Japan would soon rise from the ashes. One letter urged the following: “We must rebuild Japan as it was before the war. We must put America out of the way. Spiritually, we have never been defeated” (G-2 Periodic Report October 10, 1945, p. 128). Another Japanese in Seoul predicted just when the country's resurrection would commence: “The Japanese have no way to relieve the shame of losing the war except by rising again. I deeply believe that the gods will help us. 1948 will probably be that year” (ibid., October 26, 1945, p. 200).

Others saw war emerging over the ideological differences that separated the Soviet Union and the United States, with the Japanese now fighting on the side of their former U.S. enemies. A November 1945 Report noted the following:

Credibility supporting these rumors increased when, on at least one occasion, its source was a member of the U.S. armed forces.

The entry ended with a note that reflected on the problems that such “loose talk” created (ibid., November 8, 1945, p. 253).

The rumors continued and intensified as differences between the two superpowers grew. A late April 1946 Report carried the following excerpt from a piece of correspondence that was to be passed between two Koreans residing in northern Korea, one residing in Kaesong and the other in Sangch'on [Sanguch'on?]. Its contents, which noted both Soviet and U.S. troop buildup in the Kaesong area, connected the ideological differences that the two occupations were facing with the probability of war.

Beyond simple rumors, Commanding Officer Hodge also reported to his superior, General Douglas MacArthur in Tokyo who in turn forwarded his message to General Dwight Eisenhower, a warning that increasing evidence showed the Russians training a large contingent of Koreans in the north to “liberate” Koreans in the south.Footnote ³³

In a possible preparation for war, Japanese squirreled away caches of weapons in caves and even schoolhouses, such as the following that was discovered in the extreme southern city of Mokp'o 목포 in November:

Over the following months, the United States Army Military Government in Korea (USAMGIK) would confiscate similar caches of weapons hidden first by Japanese, but then later by Koreans after the majority of the former colonizers had been repatriated.

Postwar violence also resulted in gangs forming in Korean cities. Similar to the pirate gangs discussed above, the Report characterized many of these gang members as rogue ex-kempeitai who roamed the streets of Korean cities seeking to instigate conflict between the occupation armies and the Korean people.Footnote ³⁴ The U.S. Military Government learned early on of this potential problem. On September 12, just days after arriving in Seoul, the commanding officer of Japan's 17th Area Army, General Kosuke Yoshio, informed that about 100 kamikaze pilots who remained at large could “cause considerable trouble” (ibid., September 12, 1945). From early October until mid-December, the Report carried news almost daily on the arrest, interrogation, and trials of members of “secret organizations” that operated along the southern half of the Korean peninsula. The first such report appeared on October 1, just three weeks after the USAMGIK's arrival.

It followed up on this story four days later by announcing that the suspects had “confessed to the charge of illegal possession of arms and … to being members of an organization whose aim was to create strife between Americans and Koreans by means of assassinations and terrorism.” The gang members further admitted to having committed “terrorist acts prior to the arrival of the American occupation force” (ibid., October 5, 1945, p. 114). Subsequent issues of the Report contained updates on the past activities of these individuals that, in addition to listing names and nationality, developed them into a much more diverse and organized operation. The deeper the Report entered the story, however, the more confusing it became as to the group to which the defendants belonged and who actually was controlling these operations. The following day it revealed that all eleven of the defendants, who were to be tried in a few days, were “Japanese… members of an underground organization bent on subversive activity…” It further revealed information gleaned from the interrogation of a Nishihiro Tadao, who had been deposed as Chief of the Bureau of Police Affairs within the Japanese bureaucracy. Nishihiro listed three of the organization's primary purposes:

1. 1. To establish dance halls, cabarets, theaters, hotels, and other places of amusement for the purposes of obtaining information from U.S. personnel;

2. 2. To create strife between the Korean people and the American occupational forces;

3. 3. To do away with any person that stands in the way of their accomplishing their purpose.

Nishihiro also named additional gang members, including a Korean, Kim Ke Cho (alias Nakamura), who allegedly was the “head and go-between of the organization.” Funding for the operations passed through a complicated arrangement of channels that involved the Sewakai and other individuals. In total, the organization had accumulated “8,000,000 yen [that] was distributed among approximately 100 parties” (ibid., October 6, 1945, p. 118).

The investigations continued to make progress the following day with further arrests of additional members of underground gangs. In early October, the Report added the name Saitō Toshinaru, now recognized as the leader of the previously arrested Japanese, to the list. Saitō was apprehended for his role in the “killing of one Korean and the wounding of another” on October 5. He revealed under interrogation that his group was “only a small clog in a larger organization.” Saitō also named a number of others with Japanese names who were involved in its operations, and revealed that there were “more than 700 [armed] Japanese soldiers and KEMPEITAI who were roaming the streets of SEOUL…” (ibid., October 9, 1945, p. 124).

A later report suggested the amount of ammunition that the underground gangs had at their disposal. At the time of the arrest of two other Japanese, Sagoya Yoshisaki 佐郷屋嘉昭 [Also known as Tomeo] and Fujimoto Akiri, the U.S. military confiscated the following: “76 pistols, 300 rounds of ammunition, 30,000 yen and approximately 55 boxes (18 kg per box) of opium…” The weapons had been obtained from the Japanese military and were to be used for terrorist purposes. This Report also revealed financial connections between the gangs and the Sewakai, and suggested that the Korean, Kim Ke Cho, held a most prominent position in these operations (ibid., October 10, 1945, p. 128).

The case of Sagoya Yoshisaki proved interesting, while suggesting the power that the Japanese military had wielded from the late 1930s. The inquiries revealed that Sagoya, who was a member of the Aikokusha [愛国社, Patriots society] in Japan, had previously spent ten years in prison for his involvement in the assassination of Japanese Prime Minister Hamaguchi Osachi [浜口雄幸] in 1931. His death sentence issued in 1933 had been reduced to a life sentence by the emperor sometime later. He was finally pardoned in 1940, after which he traveled to Manchuria before making his way at an undisclosed time to the Korean peninsula. After returning to Japan he spent his remaining days promoting ultra-right activities, becoming a leader in the ultra-nationalist parliamentary group, the National Protection Corps (護国団 Gokokudan) (ibid., October 13, 1945, p. 143; Fetherling Reference Fetherling2006, pp. 321–22).Footnote ³⁵

The investigation continued. The confusion caused by these rogues, who were primarily, but not exclusively Japanese, intensified and their connections with the Japanese military strengthened when the authorities arrested a Major Kawai Chudo in Taegu, who had previously served as the chief of the kempeitai in Seoul. This Report now affirmed that it was Kawai, rather than Saitō Toshiharu, who was the head of this “terrorist organization.” Below him were a number of other ex-kempeitai officials. Kawai had been in Seoul awaiting orders to repatriate when he suddenly fled south with his mistress to Taechǒn (G-2 Periodic Report October 15, 1945, pp. 152–52). This same report carried updates on information regarding the money flow. Most interesting was Nishihiro Tadao's explanation that he was using part of the money for “protecting Japanese women.” However, his idea of “protecting” these women was to have them prostitute for him. This was, according to Nishihiro, the idea behind the organization's establishing entertainment programs for American troops. To this end, he purchased the services of 150 girls at 10,000 yen apiece to engage in “sexual diversion.” Nishihiro explained that the protection angle of this scheme was that “the women concerned would engage in this prostitution only [by] choice” (ibid., p. 152).Footnote ³⁶ The next day the Report carried the news that 60 Japanese who were working under Major Kawai had been arrested (ibid., October 16, 1945, p. 155).

Over the following days, new reports confirmed the existence of yet more gangs operating with similar objectives. On October 20, for example, the occupation authorities uncovered another underground gang led by a Hokuda Hitomi who had in his possession a knife and pistol at the time of his arrest. Hokuda and his gang of 20 members had organized in Taegu to “cause strife between RUSSIA and AMERICA, and KOREA and AMERICA, and to propagandize against the US in the interests of making JAPAN a great nation again” (ibid., October 21, 1945, p. 181). He revealed under interrogation that his particular organization was “nation-wide” (ibid., October 23, 1945, p. 188), and that the Hokuda gang had begun organizing as early as June 1945, months before Japan's formal surrender (ibid., October 26, 1945, p. 199).Footnote ³⁷

Information on Japanese gang-related terror diminished as suspects were brought to trial and Japanese residents in Korea repatriated. The Report had the trials beginning on November 24 and ending by December 18, after which the story faded from its pages.Footnote ³⁸ On the first day, 42 Japanese were arraigned before a Provost Court in Seoul on charges of belonging to the terrorist organization headed by Major Kawai Chudo. Of these defendants, 25 pleaded guilty, including Saitō Hoshihiru (ibid., November 24, 1945, p. 328). Those found guilty were sentenced to prison terms of hard labor and in some cases fined. Those who had been found not guilty were “advised” to immediately leave Korea. The Report indicated that the majority of those indicted were released either before or after being tried due to insufficient evidence. This included the alleged ringleader, Major Kawai, who was released without appearing in court (ibid., December 5, 1945, p. 379). A similar conclusion was reached for Nishihiro Tadao and Kim Ke Cho, with the former Chief of Police Affairs returned to Japan and the Korean released from the Kyonggi-do Provincial jail (ibid., December 18, 1945, p. 452).Footnote ³⁹

The degree that this danger element filtered back into the Korean community in Japan is impossible to ascertain. It most certainly added one more factor for those Koreans considering to repatriate to consider. Occasionally the Report included parts of letters that mentioned such activity, suggesting Japan-based Korean awareness. The following letter, that appeared as early as October 1945, provides one such example.

Violence on the peninsula continued even after many of the Japanese had been repatriated, much of it revenge-driven actions by Koreans upon Japanese. While at first Koreans took their anger out on the lingering Japanese settlers, later it took the form of ideological struggles amongst Koreans vying for political power.

Korean-initiated violence

The Report also included acts of violence that Koreans committed, first against the Japanese in the early months following liberation, and then against fellow Koreans. Much of this violence involved retribution toward the people who had victimized Koreans and Korean society during the war. Korean laborers made efforts to collect wages – both past and future – from their employers. Other cases saw Koreans searching out the people responsible for sending them to Japan for labor purposes. At times this violence appeared as an apparent random act triggered by a general hatred of the Japanese as a people, or of Koreans who had collaborated with the colonizers. As Korea's period under USAMGIK administration advanced ideology increasingly became a factor that pitted Koreans of different political suasions against each other.

During the war, U.S. officials anticipated the possibility that liberated Koreans might inflict violence upon their former Japanese occupiers. Interviews that they conducted with people familiar with Korea – businessmen, missionaries, and POWs – often included a question regarding whether Koreans would seek retribution against the Japanese following liberation. The general view expressed by the interviewees was negative: Koreans would not seek such revenge. However, a minority felt differently. One informant predicted that Koreans “would turn against [the Japanese] at the first opportunity.” As older Koreans who had not been influenced by Japanese-led education might turn to massacring Japanese, this person advised that they be “placed in protective custody in internment camps…to avoid mob rule” (Yi Reference Yi1992, p. 161).Footnote ⁴⁰ This view was slightly tame when compared to another extreme opinion:

This person advised the Americans to “put [Japanese] in larger internment centers during and immediately after hostilities” (ibid., p. 174).

Soon after Japan's defeat, Koreans initially attacked important symbols of Japanese presence, such as the Shinto shrines, before turning to the Japanese settlers themselves. The Report told of labor wage demands that some Koreans made of their now former employers. On one occasion 300 Korean laborers kidnapped their former boss at Hitachi Iron Works and, after beating him, led the executive from bank to bank in an attempt to squeeze from him three million yen, of which they were able to collect a third of this amount (G-2 Periodic Report October 2, 1945, p. 101). Another Report told of 5,800 Korean laborers in the city of Kunsan 군산 abstracting 12,261,536 yen from wealthy Japanese (ibid., November 24, 1945, p. 329).Footnote ⁴¹ Retribution toward those who wronged the laborers during the war provided another motivation for this violence. One entry reported on recently repatriated Koreans attempting to collect 2,500 yen each from the Japanese mayor of Kunsan, who was responsible for arranging their forced passage to Japan (ibid., October 6, 1945, p. 119).

A second form of violence was seen in apparent random acts committed against Japanese settlers preparing to return home, and against fellow Koreans who assisted them by purchasing or assuming control over their property. In late September, the Report told of complaints by Japanese in the Seoul-In'chǒn area of the “unlawful entry and looting” of their homes by groups of Koreans. Armed Koreans gained entrance to the house by “falsely stating that they are acting on U.S. Army orders” (ibid., September 25, 1945, p. 77). In October of this year, it reported that outside of Pusan, Koreans “seized all Japanese males over 17 years of age and all Japanese military personnel, and jailed them. Some of the Japanese soldiers had been beaten and some Japanese property appropriated.” To protect the Japanese, U.S. officials placed them in “protective custody” within the confines of a Shinto shrine (ibid., October 19, 1945, pp. 166–67).

From the earliest days following defeat, Japanese took measures to protect themselves from possible Korean retribution. They dressed in Korean fashion so as to blend in with the native population. They also secured weapons and received protection from the Japanese military and police in Korea. At first the Japanese settlers were advised by the Sewakai to remain on the peninsula to assist Koreans in building their post-liberation country (Ch'oi Reference Ch'oi2013, 99, p. 114).Footnote ⁴² Following its arrival, however, the USAMGIK ordered all Japanese to prepare to repatriate. While some Japanese residents in southern Korea encountered danger as they made their way to ports in the south, this danger paled in comparison to that endured by Japanese forced to travel the length of the Korean peninsula to ports at the southern-most tip of the peninsula to repatriate as the Soviets had not provided the means for return from the northern half of the peninsula.Footnote ⁴³

Koreans organized into groups to prey on these Japanese as well as Koreans who had formed contacts with them. A November edition of the Report carried news of a “Young Men's Suicide Alliance” [決死青年同盟, Kyōlsa ch’ōngnyōn tongmaeng], an “underground organization with terroristic intent,” whose members had been beating and robbing Japanese civilians, and warning Koreans not to deal with the Japanese settlers. The Report linked the organization with the left-wing Korean People's Republic that had created similar disturbances across southern Korea (G-2 Periodic Report November 12, 1945, p. 270).Footnote ⁴⁴ Just days earlier, the Report revealed that this group had posted signs warning Koreans that they were risking their life should they assist departing Japanese by purchasing their property (ibid., November 10, 1946, p. 263).

An early U.S. intention to utilize experience by retaining members of the Japanese administration, including their Korean collaborators, motivated further violence in southern Korea. As this included Japanese-trained police, disgruntled Koreans frequently targeted their offices of employment. One organization, the “Secret Killing Party” (암살단, Am sal tan), left the following message at a police station in Taechǒn that targeted Korean officials over their strong Japanese ties.

1. 1) “Vice Governor WHANG, In Sil –

   Strike down the head of the traitor of the Chungch'ong Namdo Province.

2. 2) Vice Police Chief PARK, Pyun Pai –

   “You are pro-Jap. You are mixed Jap-Korean boy. Take your father's memorial stone and go back to JAPAN.”

3. 3) Major of TAEJON PANG, Doo Whan –

   “You are traitor and Pro-Japan. We object [to] you!” (ibid., January 14, 1946, p. 548).

An editorial that appeared around the same time in Yǒngnam ilbo 영남일보 newspaper directed Koreans to “sweep away” such residue of Japan's colonial era and replace them with “capable people” (Yǒngnam ilbo January 18, 1946). Yet, the Japanese would physically retain significant numbers on the peninsula for another year, and even after rumors persisted that accused the USAMGIK of continuing to seek influence from their former Japanese enemy.Footnote ⁴⁵