This chapter is focused on the “Secret War” in Laos, which began after the Second Geneva Accords of 1962 were signed, reaffirming Laos’ official neutrality, and ending with the signing of the Vientiane Agreement in 1973, which was designed to lay the groundwork for national reconciliation through establishing a coalition government. However, it instead eventually led to the communist Pathet Lao takeover of the country in mid 1975, and from then little-known but persistent armed conflict between communist forces and anti-communist insurgents continued after 1975. The overall goal of this chapter is to summarize the important circumstances associated with the war in Laos, something that has apparently not been done before. The war in Laos represents a tragedy for Laos and its people, regardless of what side of the political divide one was on. Those from all sides shed blood, and large numbers were displaced due to military conflict and aerial bombardment. The Secret War in Laos stretched for eleven years, between 1962 and 1973, but, as should be clear from this chapter, conflict actually raged, on and off, and to varying degrees in different parts of the country, for over fifty years, beginning in 1945.