Leaders
Wars Between
Start & End Date
Death Count
Reason For War
100

This ancient Macedonian king created one of the largest empires in history by the age of 30 and never lost a battle.

Alexander the Great

100

The Hundred Years’ War was fought between these two nations over claims to the French throne

England and France

100

World War II began in this year when Germany invaded Poland and ended six years later.

1939 to 1945

100

World War II

70–85 million deaths

100

World War II

when Germany invaded Poland on September 1, 1939

200

This English king led the successful invasion of Normandy in 1415, achieving victory at the Battle of Agincourt.

Henry V

200

The Napoleonic Wars pitted France against a series of coalitions that included this island nation, its greatest rival.

France and Britain

200

World War I started with the assassination of Archduke Franz Ferdinand and ended with the Treaty of Versailles.

1914 to 1918

200

World War I

15–20 million total deaths

200

World War I

the assassination of Archduke Franz Ferdinand of Austria-Hungary,

300

This 17th-century Swedish monarch revolutionized warfare with mobile artillery and died at the Battle of Lützen in 1632.

Gustavus Adolphus

300

The Thirty Years’ War began as a conflict between Protestant and Catholic states within this central European empire, drawing in Sweden and France.

Holy Roman Empire and various European powers

300

The Napoleonic Wars followed the French Revolution and ended after the Battle of Waterloo.

1803 to 1815

300

Thirty Years’ War

4–8 million deaths

300

Thirty Years’ War

a struggle between Catholic and Protestant states within the Holy Roman Empire.

400

This 19th-century Prussian statesman and strategist unified Germany through wars against Denmark, Austria, and France.

Otto von Bismarck

400

The Crimean War of the 1850s saw Britain and France ally with the Ottoman Empire to fight against this northern power.

Russia

400

The Thirty Years’ War devastated much of Central Europe, beginning with the Bohemian Revolt and ending with the Peace of Westphalia.

1618 to 1648

400

Franco-Prussian War

180,000 deaths

400

Napoleonic Wars

Napoleon’s desire to dominate Europe and Britain’s opposition to his expansion

500

This Russian general earned fame for his scorched-earth tactics against Napoleon’s invasion in 1812, forcing the French army’s retreat.

Mikhail Kutuzov

500

The Great Northern War (1700–1721) was primarily fought between these two kingdoms over control of the Baltic Sea.

Sweden and Russia

500

The Hundred Years’ War, despite its name, lasted longer — concluding with the Battle of Castillon.

1337 to 1453

500

Crimean War

750,000 total deaths

500

Hundred Years’ War

the English monarch claimed the French throne