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From 1803 to 1815, Napoleon fought almost continuously against shifting coalitions of European powers. His military genius produced a series of stunning victories that remade the map of Europe, but his inability to defeat Britain and his decision to invade Russia ultimately brought about his downfall. The Continental System — Napoleon's attempt to wage economic warfare against Britain — was central to the strategic logic of the wars and to their eventual failure.
Key Definition: The Continental System was Napoleon's strategy of economic warfare against Britain, implemented through the Berlin Decree (November 1806) and Milan Decree (December 1807), which prohibited European trade with Britain and its colonies.
Key Question: Were the Napoleonic Wars and the Continental System the natural extension of revolutionary expansion, or did they mark the point at which Napoleon's drive for European hegemony overreached the resources of France?
This lesson sits within AQA A-Level History, Component 2 (Depth Study), Option 2H: France in Revolution, 1774–1815, in the content area The rise of Napoleon and his impact on France, 1799–1815. As a Paper 2 depth study, the emphasis falls on close, granular knowledge — the sequence of coalitions, the precise content of the Berlin and Milan Decrees, the structure of the Grand Empire — and above all on the evaluation of primary sources in their historical context. The wars matter for the option because they expose the relationship between Napoleonic military glory and the domestic settlement: the Empire was sustained by perpetual victory, and the Continental System is the clearest case of strategy outrunning the means to enforce it.
The assessment objectives are weighted as follows:
Note on the specification: AQA 7042 Option 2H is examined wholly within Component 2; there is no separate "Paper 3" for this option, and the Section A source-evaluation skill is the defining feature of the paper.
The Peace of Amiens (March 1802) lasted barely a year. Britain declared war in May 1803, primarily because:
| Battle | Date | Result |
|---|---|---|
| Trafalgar | 21 October 1805 | Nelson destroyed the French and Spanish fleets; ended any prospect of invading Britain; secured British naval supremacy |
| Ulm | October 1805 | Napoleon encircled and captured an entire Austrian army (~30,000 prisoners) |
| Austerlitz | 2 December 1805 | Napoleon's greatest victory; defeated Austria and Russia; "the Battle of the Three Emperors" |
Treaty of Pressburg (December 1805): Austria ceded Venetia and Tyrol; recognised Napoleon's reorganisation of Germany.
| Battle | Date | Result |
|---|---|---|
| Jena-Auerstedt | 14 October 1806 | Destroyed the Prussian army in a single day |
| Eylau | February 1807 | Bloody, indecisive battle against Russia in harsh winter conditions |
| Friedland | 14 June 1807 | Decisive defeat of Russia |
Treaty of Tilsit (July 1807): Tsar Alexander I of Russia became Napoleon's ally; Prussia lost half its territory; the Grand Duchy of Warsaw was created from Prussian Poland.
Napoleon's intervention in Spain and Portugal proved a catastrophic strategic error:
| Phase | Detail |
|---|---|
| Invasion | French forces occupied Spain (1808); Napoleon installed his brother Joseph Bonaparte as king |
| Popular resistance | Spanish guerrilla warfare tied down 250,000–300,000 French troops |
| British intervention | Wellington's army in Portugal provided a base for sustained conventional warfare |
| Significance | Napoleon called Spain his "Spanish ulcer" — a permanent drain on resources |
The Peninsular War deserves particular weight because it exposed the limits of a system designed for short, decisive campaigns against regular armies. The deposition of the Spanish Bourbons in 1808 and the imposition of Joseph Bonaparte provoked not a conventional war that Napoleon could win in an afternoon but a popular insurrection — the dos de mayo rising in Madrid, the surrender of a French army at Bailén (July 1808), and a guerrilla resistance that the corps system could not crush because it had no army to destroy and no capital whose fall would end the war. The combination of Spanish irregulars, who tied down perhaps a quarter of a million troops, and Wellington's disciplined Anglo-Portuguese army operating from a secure base behind the Lines of Torres Vedras turned the peninsula into a permanent, bleeding commitment. It was here, more than anywhere, that the wars began to acquire the character David Bell has called total — mobilising whole populations, dissolving the distinction between soldier and civilian, and escalating in ferocity. The "Spanish ulcer" did not by itself destroy Napoleon, but it drained reserves, encouraged his enemies, and demonstrated to Europe that French armies could be resisted and beaten.
| Battle | Date | Result |
|---|---|---|
| Aspern-Essling | May 1809 | Napoleon's first significant defeat in battle; Austrians inflicted heavy casualties |
| Wagram | 5–6 July 1809 | Napoleon won but at heavy cost (~34,000 French casualties) |
Treaty of Schönbrunn (October 1809): Austria ceded more territory and agreed to join the Continental System.
The campaigns of 1805–1809 display a consistent operational signature that explains both the scale of Napoleon's victories and the reason they failed to produce a stable peace. His method rested on the bataillon carré — a corps system in which self-contained corps marched on separate routes within supporting distance, allowing the army to live off the land, move faster than its opponents, and concentrate rapidly at the decisive point. Austerlitz (2 December 1805) is the classic demonstration: Napoleon deliberately weakened his right to lure the Austro-Russian army into attacking it, then split their line with a thrust through the Pratzen Heights. Jena-Auerstedt (14 October 1806) showed the same capacity to destroy an entire army in a single day. Yet the very decisiveness of these battles points to a structural problem. Napoleon's system was built to annihilate enemy armies and impose punitive peace settlements — Pressburg, Tilsit, Schönbrunn each stripped territory and dictated alliance — but a peace imposed by force generated the resentment that produced the next coalition. The system could win wars; it could not end them, because it offered the defeated no stake in the settlement and France no defensible frontier short of the whole continent.
Two episodes already qualify the legend of invincibility. Aspern-Essling (May 1809) was a genuine defeat: the Austrians under Archduke Charles repulsed Napoleon's attempt to force the Danube and inflicted heavy losses, including the death of Marshal Lannes. Wagram (July 1809) was won, but at a cost of some 34,000 French casualties — a battle of attrition rather than manoeuvre, fought by larger, less manageable armies that no longer guaranteed cheap victory. The trend matters: as Napoleon's empire expanded, his opponents learned his methods, the armies grew, the casualties rose, and the qualitative edge that had produced Austerlitz narrowed.
timeline
title The Napoleonic Wars, 1803-1815
1803 : War resumes with Britain : Amiens collapses
1805 : Trafalgar : invasion of Britain abandoned
1805 : Austerlitz : Third Coalition shattered
1806 : Jena-Auerstedt : Prussia destroyed : Berlin Decree
1807 : Tilsit : Russia becomes ally
1808 : Peninsular War begins : the Spanish ulcer
1809 : Wagram : costly victory over Austria
1810 : Empire at greatest extent
1812 : Invasion of Russia : the Grande Armee destroyed
1813 : Leipzig : Germany lost
1814 : First abdication : exile to Elba
1815 : Waterloo : final defeat
Since Trafalgar (1805) had made invasion of Britain impossible, Napoleon sought to defeat Britain through economic strangulation:
| Decree | Date | Content |
|---|---|---|
| Berlin Decree | November 1806 | Prohibited all trade with Britain; declared British Isles under blockade |
| Milan Decree | December 1807 | Any ship that had traded with Britain or submitted to British inspection was subject to seizure |
| Effect | Detail |
|---|---|
| Economic hardship | British exports to Europe fell significantly; industrial unrest (Luddite movement); food prices rose |
| But Britain survived | Britain found alternative markets (Latin America, the Ottoman Empire); the Royal Navy enforced its own counter-blockade; Britain's industrial capacity proved resilient |
| Effect | Detail |
|---|---|
| Economic disruption | European economies suffered from the loss of British goods (especially colonial products: sugar, coffee, cotton, tobacco) |
| Smuggling | Rampant smuggling undermined the system; Napoleon himself granted licences to import British goods when it suited him |
| Resentment | The Continental System was deeply unpopular in occupied and allied territories; it was a major cause of the breakdown of the Franco-Russian alliance |
| Russia's withdrawal | Tsar Alexander I's decision to withdraw from the Continental System (December 1810) was a direct cause of Napoleon's invasion of Russia |
A-Level Analysis: The Continental System was strategically logical but practically unenforceable. It required Napoleon to control the entire European coastline, drawing him into conflicts (Spain, Russia) that ultimately destroyed him. It also turned economic allies into reluctant subjects, undermining the legitimacy of French dominance.
The System should be understood as the strategic hinge of the whole period: it links the failure to invade Britain to the catastrophe in Russia. Once Trafalgar had foreclosed invasion, Britain — the paymaster of every coalition through subsidies and the one power Napoleon could never reach — could only be defeated economically, by closing the continent to her trade until her commercial and financial machine seized up. The logic was real: British exports to northern Europe did fall sharply, there was genuine distress in 1810–1811, and the Orders in Council provoked friction even with the United States. But the System contained two fatal contradictions. First, it was self-harming: by depriving Europe of colonial goods — sugar, coffee, cotton, tobacco — it raised prices, ruined ports such as Bordeaux, Hamburg, and Amsterdam, and bred smuggling that Napoleon himself licensed through the licence system when French interests required British goods, exposing the policy as incoherent. Second, it was unenforceable without controlling the entire coastline, which is precisely why it drew Napoleon ever outward — annexing the Hanseatic coast and the Papal States, occupying Holland when his brother Louis would not enforce it, and ultimately confronting Russia when Alexander, his economy throttled, reopened his ports in December 1810. The System thus converted a war against Britain into a war against all of Europe, and the requirement to police it generated the two commitments — Spain and Russia — that destroyed the Empire. Britain, blockaded, never starved; France, blockading, exhausted itself.
At its height (1810–1812), Napoleon's empire and its satellites covered most of continental Europe:
| Category | Territories |
|---|---|
| Directly annexed | France, Belgium, Netherlands, parts of Italy, the Rhineland, parts of Spain, Illyrian Provinces |
| Satellite kingdoms | Kingdom of Italy (Napoleon), Spain (Joseph), Westphalia (Jérôme), Naples (Murat), Holland (Louis, then annexed) |
| Allied states | Confederation of the Rhine, Grand Duchy of Warsaw, Switzerland, Denmark-Norway |
| Reluctant allies | Austria (after 1809), Prussia (after 1807), Russia (1807–1810) |
Napoleon exported certain revolutionary reforms to conquered territories:
Historiographical Debate: Stuart Woolf (Napoleon's Integration of Europe, 1991) argued that Napoleonic rule brought genuine modernisation to many European regions. Michael Broers (Europe Under Napoleon, 2015) countered that the empire was experienced primarily as exploitation: conscription, taxation, and economic subordination to French interests.
The Grand Empire is best analysed through a deliberate distinction between its directly annexed core, its satellite kingdoms under Bonaparte relatives, and its allied or vassal states — because the experience of Napoleonic rule varied sharply across these zones. In the annexed lands (Belgium, the Rhineland, Piedmont, the Low Countries) French institutions struck deepest: the Code, the prefects, the abolition of feudal dues, the metric system, and civil equality were genuinely embedded and, crucially, often outlived the Empire. In the satellite kingdoms, reform was real but conscription and taxation to feed the French war machine were the dominant experience. In the vassal states, exploitation predominated. This three-tier reality is exactly why the historiographical debate is unresolvable in the abstract: Woolf is more nearly right about the annexed core, Broers about the periphery. Two consequences of empire then turn back upon France. The first is nationalism: by mobilising, taxing, and conscripting subject peoples — and by exporting the very idea of the nation-in-arms — Napoleon provoked the German, Spanish, and Russian patriotic reactions that helped destroy him, an irony David Bell and Charles Esdaile both stress. The second is dependence on perpetual victory: an empire legitimated by glory and held together by force required continuous military success, so that a single great defeat — Russia — could unravel the whole structure with a speed no purely institutional empire would have suffered.
| Date | Event |
|---|---|
| May 1803 | War resumes with Britain |
| October 1805 | Trafalgar (British naval victory) |
| December 1805 | Austerlitz |
| October 1806 | Jena-Auerstedt |
| November 1806 | Berlin Decree (Continental System begins) |
| July 1807 | Treaty of Tilsit |
| 1808 | Peninsular War begins |
| July 1809 | Wagram |
| 1810 | Empire at its greatest extent |
| December 1810 | Russia withdraws from Continental System |
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