Hitler annexes Austria.
German troops occupy Czechoslovakia.
Nazi-Soviet nonaggression pact formed.
Germany's attack on Poland begins World War II.
Germany invades Denmark, Norway, France, Belgium, Luxembourg, and the Netherlands.
British and French troops evacuate from Dunkirk.
Battle of Britain fought.
Tripartite Pact formed.
Lend-Lease Act passes.
Germany invades Soviet Union.
Japanese attack Pearl Harbor.