Nazi Germany and Fascist Italy form the Rome-Berlin Axis treaty.
Nazi Germany and Imperial Japan sign the Anti-Comintern Pact. This was a pact against communism and Russia.
Adolf Hitler becomes Chancellor of Germany. His Nazi Party, or the Third Reich, takes power and Hitler is essentially the dictator of Germany.
Japan invades China.
Hitler annexes the country of Austria into Germany. This is also called the Anschluss.
Germany invades Poland. World War II begins.