At first, Germany won many battles and took over much of Europe. Fascist Italy joined Germany in 1940. Britain fought alone at first. In 1940, 330,000 soldiers were rescued from Dunkirk, and the Royal Air Force won the Battle of Britain. Winston Churchill, the Prime Minister, became a strong leader
In 1941, Germany attacked the Soviet Union, which then joined the Allies. After Japan attacked Pearl Harbor, the USA also entered the war. The Russian campaign went badly for the Germans. In 1943, the Allies landed in Sicily and Mussolini was removed
In 1945, Germany surrendered. Japan continued fighting, but the USA dropped atomic bombs on Hiroshima and Nagasaki in August, ending the war