Respuesta :
Im pretty sure the answer to that will be
Americans feared the growing power of the Soviet Union and worried that communism might spread.
and
Western democracies could not remain allied with oppressive, totalitarian, communist governments.
he Cold War began after the surrender of Nazi Germany in 1945, when the uneasy alliance between the United States and Great Britain on the one hand and the Soviet Union on the other started to fall apart. ... The Americans and the British worried that Soviet domination in eastern Europe might be permanent.