By June 1940 the Nazi had invaded France. That was a famous victory in history with more than 338000 British troops evacuating from the beaches of Dunkirk and Calais. 

The British Prime Minister Winston Churchill wanted to liberate France from the Nazi Germany.

In  June 1941 the German invasion against Russia made the soviets become one of the British Allies. Few months later, on December, the U.S. entered the war in a attempt to win it. Two preliminary proposal were drawn: Operation  Sledgehammer and Operation Roundup. This last one was approved.

Allied invasion led to French north of Africa in November 1942, the invasion of Sicily the following year and Italy two months later. 

In December 1943 there was a conference in Iran where T. Roosevelt and Stalin combined against Churchill to insist on launching the invasion across the English Channel the following day.

In January 1944 U.S. general Eisenhower was appointed supreme allied commander to lead an invasion by the code name operation OVERLORD. It would conduct the landings on different beaches of Normandy, France on June 6, 1944.

On May 8, 1945 - known as victory in Europe Day or V-E Day - celebrations erupted around the world to mark the end of World War II in Europe. The was had been raging for almost five years.