During the Cold War, UEA had to deal with the difficulty of having national organizations and individual members in communist countries. Additionally, the work of Esperanto organizations in Western countries was sometimes influenced by the Cold War: In the early 50s, the American Esperanto leader George Allan Connor denounced dissenting members of his national organization as communists. His national organization and he as an individual were eventually thrown out of UEA. The collapse of the Soviet Union and its allied states between 1989 and 1991 completely changed the international situation.