page_title: Napoleon
section_title: Peninsular War and Erfurt
hierarchical_section_title: Napoleon / Ruler of France / French Empire / Peninsular War and Erfurt
context_page_description: Napoleon Bonaparte, born Napoleone di Buonaparte, byname "Le Corse" or "Le Petit Caporal", was a French statesman and military leader who became notorious as an artillery commander during the French Revolution. He led many successful campaigns during the French Revolutionary Wars and was Emperor of the French as Napoleon I from 1804 until 1814 and again briefly in 1815 during the Hundred Days. Napoleon dominated European and global affairs for more than a decade while leading France against a series of coalitions during the Napoleonic Wars. He won many of these wars and a vast majority of his battles, building a large empire that ruled over much of continental Europe before its final collapse in 1815. He is regarded as one of the greatest military commanders in history, and his wars and campaigns are studied at military schools worldwide. Napoleon's political and cultural legacy has made him one of the most celebrated and controversial leaders in human history.
  Corsican by birth, Napoleon was born into a relatively modest family of Italian origin a few months after the island was annexed by the Kingdom of France.
context_section_description: The settlements at Tilsit gave Napoleon time to organize his empire. One of his major objectives became enforcing the Continental System against the British forces. He decided to focus his attention on the Kingdom of Portugal, which consistently violated his trade prohibitions. After defeat in the War of the Oranges in 1801, Portugal adopted a double-sided policy. At first, John VI agreed to close his ports to British trade. The situation changed dramatically after the Franco-Spanish defeat at Trafalgar; John grew bolder and officially resumed diplomatic and trade relations with Britain.
  Unhappy with this change of policy by the Portuguese government, Napoleon negotiated a secret treaty with Charles IV of Spain and sent an army to invade Portugal. On 17 October 1807, 24,000 French troops under General Junot crossed the Pyrenees with Spanish cooperation and headed towards Portugal to enforce Napoleon's orders. This attack was the first step in what would eventually become the Peninsular War, a six-year struggle that significantly sapped French strength. Throughout the winter of 1808, French agents became increasingly involved in Spanish internal affairs, attempting to incite discord between members of the Spanish royal family. On 16 February 1808, secret French machinations finally materialized when Napoleon announced that he would intervene to mediate between the rival political factions in the country.
  Marshal Murat led 120,000 troops into Spain. The French arrived in Madrid on 24 March, where wild riots against the occupation erupted just a few weeks later. Napoleon appointed his brother, Joseph Bonaparte, as the new King of Spain in the summer of 1808. The appointment enraged a heavily religious and conservative Spanish population. Resistance to French aggression soon spread throughout Spain. The shocking French defeat at the Battle of Bailén in July gave hope to Napoleon's enemies and partly persuaded the French emperor to intervene in person.
  Before going to Iberia, Napoleon decided to address several lingering issues with the Russians. At the Congress of Erfurt in October 1808, Napoleon hoped to keep Russia on his side during the upcoming struggle in Spain and during any potential conflict against Austria. The two sides reached an agreement, the Erfurt Convention, that called upon Britain to cease its war against France, that recognized the Russian conquest of Finland from Sweden and made it an autonomous Grand Duchy, and that affirmed Russian support for France in a possible war against Austria "to the best of its ability".
  Napoleon then returned to France and prepared for war. The Grande Armée, under the Emperor's personal command, rapidly crossed the Ebro River in November 1808 and inflicted a series of crushing defeats against the Spanish forces. After clearing the last Spanish force guarding the capital at Somosierra, Napoleon entered Madrid on 4 December with 80,000 troops. He then unleashed his soldiers against Moore and the British forces. The British were swiftly driven to the coast, and they withdrew from Spain entirely after a last stand at the Battle of Corunna in January 1809.
  Napoleon would end up leaving Iberia in order to deal with the Austrians in Central Europe, but the Peninsular War continued on long after his absence. He never returned to Spain after the 1808 campaign. Several months after Corunna, the British sent another army to the peninsula under the future Duke of Wellington. The war then settled into a complex and asymmetric strategic deadlock where all sides struggled to gain the upper hand. The highlight of the conflict became the brutal guerrilla warfare that engulfed much of the Spanish countryside. Both sides committed the worst atrocities of the Napoleonic Wars during this phase of the conflict.
  The vicious guerrilla fighting in Spain, largely absent from the French campaigns in Central Europe, severely disrupted the French lines of supply and communication. Although France maintained roughly 300,000 troops in Iberia during the Peninsular War, the vast majority were tied down to gar
caption: Joseph Bonaparte, Napoleon's brother, as King of Spain
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