1945 British head of state Churchill's memories and feelings of attending the Yalta conference: "I have a huge Russian bear sitting on one side and one leg on the other.
1? "Russian bear" refers to the Soviet Union and "bison" refers to the United States? Comparative changes in the power of big countries? The strength of the United States and the Soviet Union has increased? The strength of European countries such as Britain has declined. ? 2? The postwar relationship between Russian bears and bison? The United States and the Soviet Union changed from alliance to confrontation? What is the impact on the post-war world political structure? The pattern of confrontation between east and west has taken shape.