Painting of Napoleon at the Battle of Austerlitz
Topic guide

Napoleonic Wars

Coalitions, campaigns and political upheaval across Europe from 1803 to 1815.

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Overview

The Napoleonic Wars grew from the French Revolutionary Wars and pitted France against changing coalitions between 1803 and 1815. Napoleon's armies achieved dramatic victories, but Britain, Austria, Prussia, Russia, Spain, Portugal and other powers learned, adapted and repeatedly rebuilt alliances.

The wars spread legal and administrative changes while imposing conscription, taxation, occupation and mass death. They were fought at sea, across Europe and through imperial contests beyond it.

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The essential guide

01

Napoleon's system

Napoleon combined military command with a centralised state and satellite kingdoms. Victories at Austerlitz and Jena altered Europe, but domination produced resistance.

02

Sea power and continental struggle

Trafalgar prevented a direct maritime challenge to Britain, yet naval victory did not defeat France on land. Britain's finance, trade and coalition subsidies helped sustain repeated campaigns.

03

Overreach and coalition victory

The Peninsular War and invasion of Russia drained French power. Allied armies entered Paris in 1814. Napoleon returned in 1815, but defeat at Waterloo ended his rule rather than the longer political consequences of revolution and war.

04

Revolutionary war or imperial conquest?

French armies carried legal and administrative reforms while imposing conscription, taxation and occupation. Whether the wars spread revolutionary principles or replaced one empire with another depends on place and perspective.

Campaign histories are strongest when operational records are read beside civilian testimony, fiscal data and evidence from Spain, central Europe, the Caribbean and other theatres beyond Napoleon's headquarters.

Chronology

Key dates

  1. War resumed

    Britain and France returned to war after the Peace of Amiens.

  2. Trafalgar

    Nelson defeated the combined French and Spanish fleet.

  3. Austerlitz

    Napoleon defeated Austrian and Russian armies.

  4. Peninsular War

    French occupation faced British, Portuguese and Spanish resistance.

  5. Invasion of Russia

    The campaign destroyed much of Napoleon's army.

  6. Waterloo

    Coalition victory ended the Hundred Days.

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Questions and debates

Did Napoleon preserve or betray the French Revolution?

Why did coalitions eventually succeed?

How did occupation affect civilians across Europe?

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Essential stories

Begin with the foundations, then move into the events, people and debates that add detail and complexity.

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