1939 – 1945
The deadliest conflict in human history. Fought across six continents and every ocean, it killed between 70 and 85 million people — the majority civilians. It began with a German blitzkrieg across Europe and ended with atomic bombs over Japan, reshaping every nation on Earth.
Chapter-by-chapter narrative with maps, primary sources, and key events.
Explore battles on a live map with a timeline slider and territory overlays.
Deep-dive into every major engagement — commanders, casualties, significance.
Biographical flip cards with real portraits, facts, and full biography pages.
Trace each figure's full life journey — birth, education, battles, and death — on a live map.
Scroll-driven visualization of casualties — each dot a thousand lives.
Weapons, war machines, and the military innovations that defined how this conflict was fought.
Cause-and-effect chains tracing the war's long shadow on history.
War crimes, massacres, and the darkest chapters of this conflict — documented for history.
The deadliest conflict in human history. Fought across six continents and every ocean, it killed between 70 and 85 million people — the majority civilians. It began with a German blitzkrieg across Europe and ended with atomic bombs over Japan, reshaping every nation on Earth.
World War II was fought from 1939 to 1945.
World War II was fought between Allied Powers and Axis Powers.
An estimated 80,000,000 people died in World War II, including roughly 25,000,000 military and 55,000,000 civilian deaths. Figures are scholarly estimates and vary by source.
Major engagements included Battle of Stalingrad, Siege of Leningrad, Battle of Berlin, and Operation Barbarossa.