Why World War II began ?

When Adolf Hitler, the German dictator sent his soldiers to attack two small neighbouring countries, Austria and Czechoslovakia, nobody stopped him. This was the time, the second world war began. But on 1st September, 1939, when Hitler attacked Poland, the polish fought back. To help them, the British and the French stepped in. Over-running Denmark, Norway, Netherlands, Belgium and France, he conquered Poland and then launched a surprise attack in the west.

He then tried to break the spirit of the British but in 1941 lost the battle of Britain against the R.A.F. Meanwhile, the Italian dictator Musolini an ally of Hitler along with Japan had come in the war. The American, British and other forces landed on the Normady beaches and forced the Germans out of France. They swept across Germany to meet their Russian allies in 1945. In May 1945, Germany surrendered to the allied forces. A few months later i.e in August 1945 the first atomic bombs were dropped on the Japanese cities Hiroshima and Nagasaki. In September 1945, Japan surrendered and the war ended.