Continental System

• 1. Introduction

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  The Continental System was Napoleon's grand attempt to strangle Britain without firing a single shot at sea. On the 21st of November 1806, he signed the Berlin Decree, declaring that every port under his control was closed to British goods. The question at the heart of this decree was simple: could a land empire defeat a sea empire purely through economic pressure? Napoleon had watched his combined French and Spanish fleets shattered at Trafalgar in 1805. With the Royal Navy controlling the oceans, a traditional naval blockade was impossible. So he turned the map inside out. If Britain could not be beaten at sea, he would deny it the continent of Europe as a marketplace. What followed was eight years of smugglers, reluctant allies, punishing winters, and two catastrophic invasions that together ended his rule.

• 2. Origins of Economic War

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  Britain's status as Europe's industrial and commercial center, shaped by the Industrial Revolution, made it the natural target for this strategy. Napoleon calculated that the island nation depended entirely on continental trade for its prosperity. Cutting that trade, he believed, would trigger inflation and debt severe enough to force Britain to negotiate peace. His position on the continent had never been stronger. By November 1806, having recently conquered or allied with every major European power, he issued the Berlin Decree forbidding any nation allied with or dependent on France from importing British goods. Even correspondence with Britain was banned. Britain did not wait passively. It had already imposed a naval blockade of French and French-allied coasts on the 16th of May 1806. After the Berlin Decree, Britain escalated with further orders in council on the 10th of January and the 11th of November 1807, forbidding French trade with Britain or its allies and instructing the Royal Navy to blockade all French and allied ports. Napoleon replied with the Milan Decree of 1807, declaring that any neutral ship using British ports or paying British tariffs would be treated as British and seized. The two empires had locked themselves into a cycle of escalating economic warfare with no obvious exit.

• 3. Holes in the Blockade

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  Smuggling gutted the Continental System almost from the start. Napoleon's enforcement was entirely land-based, and his customs officers could not patrol every coastline. British goods flowed through Malta in large quantities, reaching southern Italy with ease. British exports to the continent did fall sharply, dropping between 25% and 55% compared to pre-1806 levels. But British merchants responded by pushing aggressively into new markets in North and South America, covering much of the decline. The rulers Napoleon himself had placed on European thrones were among the worst offenders. Chosen leaders of Spain, Westphalia, and other German states actively cooperated with British smugglers. King Louis I of Holland, Napoleon's own brother, chafed openly at the economic damage the embargo was inflicting on the Dutch, whose entire economy rested on trade. In July 1810, Napoleon acknowledged the problem with his St. Cloud Decree, which opened the southwest of France and the Spanish frontier to limited British trade and restored French commerce with the United States. It was an implicit admission that the blockade was hurting his own economy more than it was hurting Britain's.

• 4. Britain's Domestic Strain

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  The embargo did inflict real damage inside Britain, even if it fell short of Napoleon's goals. British exports to the continent as a share of total trade dropped from 55% to 25% between 1802 and 1806. The worst period came between 1810 and 1812, when unemployment and inflation rose sharply, prompting widespread protest and violence. The Luddite movement, which targeted industrial machinery as a symbol of economic dislocation, was suppressed by the Yeomanry and militia, backed by the middle and upper classes who supported the government's position. The conflict also rippled across the Atlantic. Britain's orders in council threatened punitive measures against any neutral nation that traded with France, putting the United States in an impossible position. The U.S. responded with the Embargo Act of 1807 and later Macon's Bill Number 2, measures designed to hurt Britain but which proved more damaging to American merchants than to their intended target. Combined with Britain's impressment of sailors from American vessels and its support for resistance to U.S. westward expansion, these tensions pushed the two countries into the War of 1812. That conflict, rather than Napoleon's blockade, was what most sharply reduced British-American trade during those years.

• 5. France and Europe Bleed

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  Southern French port cities felt the embargo's bite early and hard. Marseille, Bordeaux, and La Rochelle all suffered from the collapse of overseas trade. Shipbuilding declined along with dependent crafts such as rope-making. Linen and other industries that depended on export markets contracted, and firms closed across the region. Across most of continental Europe, the prices of staple foods rose. The industrialized north and east of France told a different story. Textile manufacturers in that region and in Wallonia, the southern part of present-day Belgium, saw profits rise significantly because British textiles, which were produced far more cheaply, were no longer competing in their markets. Italy's agricultural sector also benefited. But these gains were concentrated and uneven, and the anger of hurt economies gave allied rulers an incentive to ignore French directives. That political erosion steadily weakened Napoleon's coalition.

• 6. Scandinavia and the Baltic Fight

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  Britain's first strategic move in response to the Continental System was a naval strike on Denmark. Although Denmark was officially neutral, it was under heavy pressure from both France and Russia to hand its fleet to Napoleon. London acted first. In August and September 1807, the Royal Navy bombarded Copenhagen in what became known as the Second Battle of Copenhagen, seized the Danish fleet, and secured control of the North Sea and Baltic Sea lanes for British merchants. The island of Heligoland, off Denmark's west coast, was occupied in September 1807, giving Britain a base to facilitate North Sea smuggling. These attacks triggered the Gunboat War against Denmark, which continued until 1814. Sweden, a British ally in the Third Coalition, refused to comply with French demands and was attacked by Russia in February 1808 and by Denmark-Norway in March 1808. A French invasion threat was deterred only because the Royal Navy controlled the Danish straits. Britain established a naval base outside Gothenburg in 1808. A second base was set up on the Swedish island of Hanö in 1810, and the small Danish island of Anholt was occupied in May 1809. A lighthouse on Anholt simplified navigation through the straits, making the smuggling convoys more reliable. Vice-admiral James Saumarez commanded the Baltic campaign from 1808 to 1814. Russia itself cracked under the embargo by 1810, reopening trade with Britain, and that decision became one of Napoleon's stated justifications for his 1812 invasion.

• 7. Portugal, Spain, and the System's Collapse

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  Portugal never joined the Continental System. A mutual assistance treaty with Britain signed in 1793 bound Lisbon to the opposite side. After the Treaty of Tilsit in July 1807, Napoleon moved to correct this. He attempted to seize the Portuguese fleet and capture the House of Braganza. Prince Regent John, acting for his incapacitated mother Queen Maria I, outmaneuvered him. With a Royal Navy escort, he transferred the Portuguese court and fleet to Brazil. The Portuguese population then rose against the French occupiers, aided by the British Army under Arthur Wellesley, who would later hold the title of Duke of Wellington. Napoleon intervened personally, and the Peninsular War began in 1808. He also forced the Spanish royal family to abdicate, handing the throne to his brother Joseph. The resulting Spanish War of Independence tied down a large portion of French military strength indefinitely. Napoleon had pushed Russia too hard on the Continental System and on his ambitions over part of Poland. His invasion of Russia in 1812 ended in catastrophic retreat and proved the turning point of the entire Napoleonic era. By the 11th of April 1814, the date of Napoleon's first abdication, the Continental System formally ended. The prospect of a second continental league grouping France, Germany, and Russia against Britain was briefly floated as late as the early 1900s, suggesting that Napoleon's basic strategic concept outlasted the man himself by nearly a century.