The invasion of Martinique was a successful British amphibious operation against the French colony of Martinique that took place between 30 January and 24 February 1809 during the West Indies campaign of 1804–1810 of the Napoleonic Wars. Martinique, like the nearby island of Guadeloupe, was a major threat to Britain's trade in the West Indies, providing a sheltered base from which privateers and French Navy warships could raid British merchant shipping and disrupt the trade routes that maintained the economy of the United Kingdom. Both islands also provided a focus for larger-scale French operations in the region and in the autumn of 1808, following the Spanish alliance with Britain, the Admiralty decided to order a British squadron to neutralise the threat, beginning with Martinique.
The British mustered a large expeditionary force under Vice-Admiral Sir Alexander Cochrane and Lieutenant-General George Beckwith, commanding 29 ships and 10,000 men – almost four times the number of French regular troops garrisoning Martinique. Landing in force on both the southern and northern coasts of the island, British troops pushed inland, defeating French regulars in the central highlands and routing colonial militia units in the south of the island. By 9 February, the entire island was in British hands except Fort Desaix, a powerful fortification intended to protect the island capital of Fort-de-France, which had been bypassed during the British advance. In a siege lasting 15 days, the Fort was constantly bombarded, with the French garrison suffering 200 casualties before finally surrendering.
The capture of the island was a significant blow to France's power in the region, eliminating an important naval base from their control and denying safe harbours to French shipping in the West Indies. The consequences of losing Martinique were so severe that the French Navy dispatched a naval squadron to reinforce the garrison during the invasion. Arriving much too late to affect the outcome, these reinforcements were intercepted off the islands and scattered during the action of 14–17 April 1809; half the force failed to return to France. With Martinique occupied, British attention in the region turned to Guadeloupe, which was captured the following year.
Background
During the Napoleonic Wars, the British Royal Navy was charged with limiting the passage and operations of the French Navy, French merchant ships and French privateers. To achieve this objective, the Royal Navy imposed a system of blockades on French ports, especially the major naval bases at Toulon and Brest. This stranglehold on French movement off their own coastline seriously affected the French colonies, including those in the West Indies, as their produce could not reach France and supplies and reinforcements could not reach them without the risk of British interception and seizure. These islands provided excellent bases for French ships to raid the British trade routes through the Caribbean Sea: in previous conflicts, the British had countered the threat posed by French West Indian colonies by seizing them through force, such as Martinique, which had been previously captured by armed invasion in 1762 and 1794. An attempt in 1780 was defeated by a French battle squadron at the Battle of Martinique. By 1808 there were no French squadrons at sea: any that left port were eliminated or driven back in a series of battles, culminating at the disastrous defeat at the Battle of Trafalgar in 1805. The fleet that was destroyed at Trafalgar had visited Martinique the year before and was the last full-scale French fleet to visit the Caribbean for the rest of the war.
