World War - Invasion of Poland

August 23, 1939 -
Germany signs a non-aggression pact with the Soviet Union, making ways for its invasion of Poland.

September 1, 1939 -
German troops invade Poland. Polish defenses crumble under a massive mechanized land and air assault.

September 3, 1939 -
Britain and France declare war on Germany but take no military action to aid Poland.

September 27-28, 1939 -
Warsaw falls. Poland's capital, home to 350,000 Jews, surrenders to German troops after a three-week siege.

October 2, 1939 -
Last Polish soldiers surrender.