This statement is not entirely accurate. The policy of appeasement, which was pursued by European powers in the 1930s, was an attempt to avoid a war with Germany by giving in to some of its demands. However, this policy did not prevent Hitler from continuing his aggression and expansionist policies. In fact, Hitler saw the concessions made to him as a sign of weakness, and this encouraged him to pursue further territorial gains. The policy of appeasement ultimately failed, as Hitler's aggression eventually led to the outbreak of World War II in 1939.