This chapter examines the intersection between Trucial States, Iran, and the British during the interwar years with a particular emphasis on the crises of 1926‒1929. The events surrounding Iran's reoccupation of Hengam in 1928 and capture of an Arab dhow off the coast of Greater Tunb Island can serve as an apt example of how the Arab rulers and merchants of the Gulf perceived Iran and the British during the interwar years. The chapter concludes with an examination of the shifting power distribution within the shaykhdoms in the 1930s, due to the collapse of the pearl industry and the rise of revenues from air and oil agreements, with particular attention to the position of the Iranian immigrant communities in the Trucial States