1. World War II: Europe Preconditions  Treaty of Versailles conditions  World depression  Isolationism in the U.S.  Totalitarianism  Nazism and fascism  Anti-Semitism  U.S. military weakness  Weakness of the League of Nations

2. World War II: Europe Aggravators  London Conference (1933)  Hitler becomes dictator (1936)  Rome-Berlin axis (1936)  Neutrality Acts (1935-37)  Spanish Civil War (1936-39)  German compulsory military service (1935)  Germans militarize the Rhineland (1936)  Anschluss in Austria (1938)  Munich Conference (1938)  Non-Aggression Pact (1939)

3. World War II: Asia Preconditions  Isolationism in U.S.  Militarism in Japan  Japanese geography and economics  Ungenerous Treaty of Versailles

4. World War II: Asia Aggravators  Tydings-McDuffie Act (1934)  Tokyo terminates Washington Naval Treaty (1934)  Japan walks out of disarmament conference (1935)  Japan quits League of Nations (1935)  Japan invades China (1937)  Panay (1937)  Tri-Partite Pact (1940)  FDR orders oil embargo on Japan and Japanese assets in U.S. frozen (1941)

5. World War II: Triggers  Europe: Germany invades Poland (September 1, 1939)  Asia: Japan attacks Pearl Harbor (December 7, 1941)