Nazi Germany and Fascist Italy form the Rome-Berlin Axis treaty.
Nazi Germany and Imperial Japan sign the Anti-Comintern Pact.
Japan invades China.
Hitler annexes the country of Austria into Germany.
Germany invades Poland. World War II begins.
France and Great Britain declare war on Germany.
Although President Roosevelt has declared American neutrality in the war in Europe, a Neutrality Act is signed that allows the US to send arms and other aid to Britain and France.
Germany invades and takes control of Denmark and Norway.
Winston Churchill becomes leader of the British government.
Italy enters the war as a member of the Axis powers.
Germany launches an air attack on Great Britain. These attacks last until the end of October and are known as the Battle of Britain.
Germany, Italy, and Japan sign the Tripartite Pact creating the Axis Alliance.
Germany and the Axis Powers attack Russia with a huge force of over four million troops.
The Japanese attack the US Navy in Pearl Harbor.
The U.S. enters the world on the allies side.
The US Navy defeats the Japanese navy at the Battle of Midway.
D-day and the Normandy invasion. Allied forces invade France and push back the Germans.
he Allies invade and take the island of Sicily.
Italy surrenders to the Allies, however Germany helps Mussolini to escape and set up a government in Northern Italy. .
Paris is liberated from German control.
The Germans launch a large attack in the Battle of the Bulge. They lose to the Allies sealing the fate of the German army.
US Marines invade the island of Iwo Jima. .
The US Third Army under General Patton crosses the Rhine River.
US President Franklin Roosevelt dies. He is succeeded by President Harry Truman.
Adolf Hitler commits suicide as he knows Germany has lost the war.
Germany surrenders to the Allies.
The United States drops the Atomic Bomb on Hiroshima, Japan.
Another atomic bomb is dropped on Nagasaki, Japan.
Japan surrenders to US General Douglass MacArthur and the Allies.