We declare war on you, because you invade Poland.
Battle of Britain
Starting September 1, 1939, Germany began launching attacks on Poland. Hitler wanted control of Poland for more "living space" for the German people. The Nazis had a successful attack, due to their "blitzkrieg" method of attack.
Bombing of Pearl Harbor
After Germany's invasion of Poland, Britain and France Honored their promise to protect Poland, and declared war on Germany. On September 3rd 1939, World War II began.
During the Battle of Britain, the European countries staged large-scale attacks on the German air force. This was in retaliation for the German bombings that plagued the Allied countries.
I surrender! Unconditionally!
The bombing of Pearl Harbor, was "a day that will live in infamy." it was an attack on the US by the Japanese. This event is what brought the United States into World War II, fighting for the Allied Forces.
On June 6, 1944, Allied Forces launched an attack on the Axis Powers at Normandy. This day was named “D-Day.” In one day, over 6000 American troops died, and hundreds more were injured.
By August 10, 1945, Germany and many other Axis Powers had surrendered. Mussolini and Hitler were dead, but Japan still fought on. The Allies retaliated by dropping two atomic bombs on Japan. this led Japan to finally surrender on August 14th.