World War II and it's effects

WWII involved the most nations, (nearly 60) killed more human beings and cost the most money any other war in history.  It had 70 million people in it's service, and killed 17 million combatants. The Civilian deaths, however, racked an even higher number, with 19 million Soviet citizens, 10 million Chinese, and 6 million European Jews left dead.  35 million Human citizens died altogether because of this war.

The war started on September 1st, 1939, when Germany invaded Poland.  The United states entered the war when attacked by Japan on the U.S. Pacific fleet in Hawaii.  (This is known as Pearl Harbor) That same year, Albert Einstein wrote a letter to President Roosevelt, giving him warning that the Nazi's might have the chance to build an atomic bomb.  This is when the secret $2 billion Manhattan Project started, and the race to build the first atomic bomb was on.

 On July 16th, 1945, in the New Mexico desert, the Manhattan Project was tested.  The first atomic bomb exploded.  This was what eventually ended the war, when America bombed Japan twice, ending the World Wide Suffering yet again.  This decision was the most controversial decision in all of military history.