The first weeks of war disrupt the lives of so many, starting with the first shots fired by the Japanese in China in July 1937.

Between September 1940 and November 1941, things intensify as Nazi Germany exerts its dominance over Europe.

From December 1941 to May 1942, Singapore falls, the Wannsee Conference is held in Berlin, and a single event in the Pacific transforms the war into a total global conflict.

By spring 1942, German armies take control, the battles of Midway and Stalingrad begin and Americans achieve a groundbreaking milestone in the development of atomic weapons.

1943 begins with the Casablanca Conference. Events unfold in the week of the Soviet victory in Stalingrad and one of the best-selling songs in history is released.

Halfway through its fourth full year, the fortunes of war were running increasingly in favour of the Allies. The bombing of Hamburg and the Allied Tehran Conference take place.