1939 In August, the Soviet Union and Germany signed the Treaty of Non-Aggression between the Soviet Union and Germany, which marked the bankruptcy of the appeasement policy. Because after the Munich crisis, the Munich agreement made Germany more unscrupulous, constantly invaded and expanded, and greatly increased its economic and military strength. At this time, the Soviet Union completely lost its trust in France's sincerity for peace. For its own national security, it avoided war under the special circumstances at that time and signed a non-aggression treaty with Germany. Since then, the conspiracies of great powers such as Britain and France have undoubtedly been exposed, and the appeasement policy has been declared bankrupt. In this way, Germany relieved its worries, and the Soviet Union avoided being attacked by the Germans first, thus winning the time for preparation. In fact, the Soviet-German non-aggression treaty is another appeasement policy that objectively encourages fascist aggression. Different from the appeasement policies of Britain, France and other countries, the Non-aggression Treaty between the Soviet Union and Germany is another implicit appeasement policy adopted by socialist countries out of helplessness. The appeasement policy of great powers such as Britain and France is adopted by capitalist countries to protect their own interests and destroy the socialist Soviet Union with the help of Germany, so the interests of weak countries are sacrificed to satisfy the desire of insatiable fascist countries.