1934: MaoZedong heads Long March
1939: Germany invades Poland; France and Great Britain declare war on Germany
1941: Japan attacks Pearl Harbor
May 1945: Germany surrenders
Aug-Sept. 1945: Allies use atomic bombs on Hiroshima and Nagasaki
1945: United Nations formed
In June 1945 around 50 nations formed the United Nations. The UN is an international organization that was created in order to protect its members against aggression. The U.S. and the Soviet Union put away their differences to create this organization, in which the 5 permanent members were Britain, China, France, the U.S., and the Soviet Union.
The Battle of the Bulge caused Germans to be weaker. Allies and Soviets alike were able to close into Germany. The Soviets managed to surround the capital, Berlin, and Germany knew taht they were coming to an end. Hitler prepared for his end by committing suicide, and an unconditional surrender was finally accepted by the United States from Germany.
The people in the U.S. were shocked when they heard of the attack at Pearl Harbor, so they readily agreed to President Roosevelt's declaration of war against Japan. The United States wanted revenge on Japan. A new weapon, called the atomic bomb, had been developed so when President Truman came into power he was advised to end the war quickly by dropping the bombs on Japan. He told Japan to surrender or else he'd use the atomic bombs, but since they didn't reply he ordered atomic bombs to be dropped on the two cities of Hiroshima and Nagasaki.
Resistance in China harmed Japan's economy so Japan wanted to get new resources. It looked toward the Southeast colonies belong to the Europeans, and the U.S. stopped sending oil to Japan to prevent more advancing. Japan decided to surprise the Europeans and the U.S. by bombing several ports and the U.S. fleet in Hawaii called Pearl Harbor.
Joseph Stalin and Adolf Hitler signed a 10 year non agression pact. A secret part of the pact was to divide Poland up in between them. After signing, Hitler immediately started to conquer his part of Poland. His invasion was known as blitzkrieg, or lightening war. Great Britain and France declared war, but it was too late and a part of Poland fell to Germany.