Troude's expedition to the Caribbean was a naval operation by a French force under Commodore Amable Troude during the Napoleonic Wars. The French squadron departed from Lorient in February 1809 in an attempt to reach and resupply the island colony of Martinique in the Caribbean Sea, then under invasion from a British expeditionary force. The force arrived much too late to affect the outcome of the successful invasion and took shelter from a British squadron in the Îles des Saintes, where they were blockaded by part of the British invasion fleet, led by Vice-Admiral Sir Alexander Cochrane. Two weeks after the French ships arrived, British troops invaded and captured the Saintes, constructing mortar batteries to bombard the French squadron. With his position unsustainable, Troude decided to break out.

Attempting to escape under cover of darkness on 14 April, the French squadron was spotted by a number of small British ships stationed close inshore. These ships raised the alarm and the main British squadron followed in pursuit. The rearmost French ship of the line, , was closely followed by the small brig , which succeeded in delaying D'Hautpoul long enough that the main British squadron was able to attack and overwhelm her in a running battle that lasted three days and ended off the coast of Puerto Rico. The British suffered 45 casualties, the French nearly 100. The remainder of the French squadron escaped, with the two surviving ships of the line sailing directly for France, eventually reaching Cherbourg in May.

The French expedition's two frigates, both only partially armed, were detached during the action and took shelter in harbour at Guadeloupe. In June, heavily laden with trade goods, they attempted to escape to Europe, but were pursued by elements of the British blockade force. was overrun after four days of manoeuvre, submitting to the more powerful British frigate without a fight. was able to escape immediate pursuit, but was subsequently discovered on 3 July by the smaller British ship . In a fierce engagement two days later, the small British ship was able to defeat and capture the French vessel, which was later commissioned into the Royal Navy.

Background During the Napoleonic Wars, the French Navy suffered a series of defeats at the hands of the British Royal Navy, culminating in the destruction of much of their Mediterranean Fleet at the Battle of Trafalgar in 1805. Unable to compete at sea, the French were increasingly confined to their principal naval bases, especially Brest on the Biscay coast and Toulon in the Mediterranean. With British squadrons patrolling the entrances to these ports, the French found it difficult not only to conduct regular overseas trade, but also to supply and reinforce their overseas colonies.Gardiner, p. 17 As a result, the colonies faced financial collapse and the constant threat of attack by British forces, especially in the Caribbean, where by 1809 their island colonies of Martinique and Guadeloupe were surrounded by British held islands and blockaded by a strong British fleet under Vice-Admiral Sir Alexander Cochrane.Clowes, p. 283

During the summer of 1808, messages arrived in France from Martinique, outlining the desperate situation of their supplies, morale and economy. It was determined that reinforcements and food supplies would be sent and the frigate was despatched in November 1808. Within days, Thétis had been captured at the action of 10 November 1808, and subsequent operations had mixed success: the frigate reached Martinique, but a number of smaller ships were intercepted and defeated, both in Europe and the West Indies.Gardiner, p. 78 In desperation, a major operation was planned, intended to transport substantial supplies and sufficient troops to resist the inevitable British invasion on Martinique. To this end, Commodore Amable Troude was provided with the ships of the line , and , with the frigates and en flûte as armed storeships, carrying the bulk of the supplies.James, p. 161

On 21 February 1809, a large French fleet under Admiral Jean-Baptiste Willaumez attempted to escape Brest and was chased by the blockade squadron and driven to shelter under the Ile d'Aix. Shortly afterwards, three French frigates attempted to break out of Lorient, but were challenged and destroyed at the action of 24 February 1809. These operations were the preliminaries to the Battle of Basque Roads in April, but also provided the cover required for Troude's force to escape Lorient while the British were engaged elsewhere.James, p. 96 Travelling rapidly across the Atlantic, the French encountered no British warships but were able to seize a number of lone British merchant ships, from whom Troude learned that the invasion of Martinique was already underway.Woodman, p. 242 While Troude's expedition had been preparing at Lorient, Cochrane had been preparing his own operation to Martinique, following the interception of the same despatches warning of the island's low morale and preparedness in the summer of 1808. Amassing an expeditionary force of 44 ships and 10,000 men at Carlisle Bay, Barbados, Cochrane began the invasion on 30 January 1809 and his troops rapidly overran the French defences, despite stiff resistance in the central highlands. By 10 February, the only remaining point in French hands was Fort Desaix, which held out until the magazine was breached on 24 February, at which point Governor Louis Thomas Villaret de Joyeuse surrendered unconditionally.James, p. 209

Îles des Saintes Troude was wary on his arrival in the Leeward Islands on 29 March, refusing to approach Martinique and instead anchoring near the Îles des Saintes until the situation in the islands could be established. Before he could make contact with nearby Guadeloupe, he was discovered by patrolling British warships and a warning sent to Cochrane, who was on his flagship off Martinique. Within hours Neptune was cruising off the Saintes, joined by the ships of the line , , , , and a number of smaller warships that could operate closer inshore.Clowes, p. 435 Blockading the Saintes was a difficult task: the French had three channels through which they could escape, too many to be effectively blocked by the forces at Cochrane's disposal. In addition, Troude's force could not be attacked directly, the width of the channels making it impossible for the British ships to attack in full strength.James, p. 162

For two weeks the British and French squadrons watched one another, the British unable to attack and the French unable to escape. In an effort to break the deadlock, Cochrane sent to Martinique for a body of 3,000 men under Major-General Frederick Maitland. With this force he launched a surprise invasion of the islands on 14 April, the amphibious operation commanded by Captain Philip Beaver in and executed successfully with only minor casualties. Parties of seamen went ashore in the wake of the soldiers, working rapidly to establish a battery of two 8-inch howitzers on Morne-Russell. These guns began firing during the afternoon and by 20:00 Troude had given orders for his squadron to sail through the western channel during the night.

In their efforts to monitor the French, Cochrane's squadron had become divided, so that Neptune and Pompee were the only ships within reach of Troude's squadron when they passed through the channel. Neither ship was well placed to fight the larger French force and both were taken by surprise, only alerted to the French escape by the brig under Captain Hugh Cameron shortly before 22:00. Pompee was closest to the French, and Captain William Charles Fahie managed to fire two broadsides into the rearmost ship, D'Hautpoul, before Troude's squadron pulled away from her. Neptune, Pompee and the small brig took up the chase, the fast Recruit annoying the French with persistent minor attacks, while Neptune came too close to D'Hautpoul and was fired on, losing one man killed and four wounded. The French escape, while necessitated by the British battery, was actually a feint: the frigates Félicité and Furieuse had remained hidden off the Saintes during the night and at 09:00 on 15 April, with the main combat continuing to the west, slipped away into Basse-Terre on Guadeloupe, chased in vain by under Captain Warwick Lake. French batteries drove off the British pursuit and the frigates were anchored in harbour and their stores successfully unloaded.James, p. 165

Battle

During the night of 14–15 April 1809, contact was maintained with the French squadron by Recruit, Captain Charles John Napier firing on the rearmost ship D'Hautpoul and coming under fire from the French stern-chasers, guns situated in the rear of a ship to fire on pursuers. Shortly after 04:00, Pompee came within range and began to fire her bow-chasers, the chase continuing westwards into the Caribbean Sea. Frustrated by her inability to escape Recruit, D'Hautpoul eventually turned and fired a broadside at 10:45, causing severe damage but failing to dissuade Napier, who immediately counter-attacked. D'Hautpoul'''s manoeuvre caused her to lose ground to her pursuers and throughout the day the squadrons exchanged shots, neither causing significant damage but the French being driven deeper into British held waters and unable to drive off their opponents.

At 20:00, Troude ordered D'Hautpoul to steer to the northwest while he took Courageux and Polonais southwest in an effort to divide the pursuit. Pompee and Recruit kept with D'Hautpoul, while Neptune, accompanied by the brig-sloop , continued to follow Troude's main force. During the night however Troude outdistanced Neptune, and on the morning of 16 April Cochrane ordered all available ships to converge on D'Hautpoul. The lone French ship of the line had finally forced the damaged Recruit to retire, but could see Pompee and Neptune to the southeast and the newly arrived frigates under Captain Hugh Pigot and under Captain William Roberts to the northeast, with the Spanish coast of Puerto Rico directly north.Clowes, p. 436 During the day the chase continued, Neptune falling behind but Pompee remaining in sight and the frigates gaining on D'Hautpoul. At 17:00, Puerto Rico appeared on the horizon, the French forced to follow the coastline westwards. During the night, the British pursuers were confused by the overcast sky, which helped D'Hautpoul to partially obscure herself among the lights from shore.James, p. 163

At 02:45 on 17 April, Castor closed within range of D'Hautpoul and opened fire, exchanging broadsides with the much larger French ship for 75 minutes and slowing her sufficiently for Pompee to come within range. Sailing between Castor and the French ship, Fahie closed within and opened fire with his broadside. Within 15 minutes D'Hautpoul attempted to escape by pulling forward and engaging with Castor again, but the damage done to her sails and rigging hindered the manoeuvre and Pompee pulled across her stern, threatening to rake her. With defeat inevitable, Captain Amand Leduc surrendered, Neptune, York, Captain, Hazard, Hawk, Recruit, Polyphemus, and all coming within sight as dawn broke, joining Pompee, Castor and Latona.James, p. 164