The deadliest conflict in human history — 70-85 million killed as the world fights fascism, endures the Holocaust, and enters the nuclear age.
Hitler's invasion of Poland triggers declarations of war from Britain and France — World War II begins.
Germany's blitzkrieg conquers France in six weeks — Britain stands alone against Nazi-dominated Europe.
The RAF defeats the Luftwaffe in history's first major air campaign — Churchill declares it the 'finest hour.'
Operation Barbarossa — the largest military operation in history — opens the Eastern Front that will ultimately destroy Nazi Germany.
Japan's surprise attack on the US Pacific Fleet brings America into the war — Roosevelt calls it 'a date which will live in infamy.'
Nazi leaders coordinate the systematic deportation and murder of Europe's Jews — industrialized genocide on an unprecedented scale.
The US Navy destroys four Japanese aircraft carriers, turning the tide in the Pacific War.
The bloodiest battle in history — an estimated 2 million casualties — ends with German surrender, marking the turning point of the European war.
The largest amphibious invasion in history lands 156,000 troops on the beaches of Normandy, opening the Western Front.
Soviet troops liberate the largest Nazi death camp — the world confronts the full horror of the Holocaust.
Nazi Germany surrenders unconditionally — the war in Europe is over after nearly six years and tens of millions of deaths.
The first nuclear weapon used in war destroys an entire city, killing an estimated 80,000 instantly and inaugurating the atomic age.
Emperor Hirohito announces Japan's surrender. The deadliest conflict in history is over — 70-85 million people have perished.