Final answer:
Churchill viewed the USSR as a global threat in world affairs and referred to the division between Eastern and Western Europe as an "iron curtain". This suggested a breakdown in the relationship between the USSR and the West.
Step-by-step explanation:
Churchill believed that the USSR was a global threat in world affairs. He referred to the division between Eastern and Western Europe as an "iron curtain", signifying the separation between the democratic and communist nations. This viewpoint suggests a breakdown in the relationship between the USSR and the West, as Churchill saw the growing dominance of communism as a menace on the other side of the ideological divide.