Truman Briefing By vudavid00 Period: Jan 1, 1930 to Dec 7, 1941 Truman Briefing This is a briefing for Truman when he became president of the United States. Sep 18, 1931 Japan invades Manchuria Jan 30, 1933 Hitler Rise to Power Hitler became the chancellor of a coalition government and gained absolute power in Germany. Jul 7, 1937 Japan invades China initiationg WWII in Pacific Mar 15, 1939 Germany invades Czechoslovakia Sep 9, 1939 German invades Poland initiating WWII in Europe Sep 17, 1939 Soviet Union inavde Poland Jun 21, 1940 Italy invades France and enters the War