Multiple choice Which event cause Chamberlain's policy of appeasement to be viewed as a failure? invasion of Czechoslavakia creation of League of Nations atomic bombing of Hiroshima forced famine in Ukraine Reveal answer Fill a bubble to check yourself A Correct answer Explanation Chamberlain's policy of appeasement was shattered when Hitler broke the Munich Agreement by invading the rest of Czechoslovakia in March 1939, proving that Hitler could not be trusted.