By 1809 the
Royal Navy was dominant in the
Atlantic. The French fleet had lost its best ships and sailors in the
Battle of the Nile, and had yet to recover. During the
Trafalgar Campaign of 1805 and the
Atlantic campaign of 1806 the French Atlantic Fleet had suffered more naval losses and the survivors were trapped in the French
Biscay ports under a close
blockade by the British
Channel Fleet. The largest French base was at
Brest in
Brittany, where the main body of the French fleet lay at anchor under the command of
Counter-admiral Jean-Baptiste Willaumez, with smaller French detachments stationed at
Lorient and
Rochefort. These ports were under observation by the Channel Fleet, led off Brest by Admiral
Lord Gambier. Gambier was an unpopular officer, whose reputation rested on being the first captain to break the French line at the
Glorious First of June in 1794 in . Since then he had spent most of his career as an administrator at the
Admiralty, earning the title
Baron Gambier for his command of the fleet at the
Bombardment of Copenhagen in 1807. A strict
Methodist, Gambier was nicknamed "Dismal Jimmy" by his men.
Willaumez's cruise British superiority at sea allowed the Royal Navy to launch operations against the
French Overseas Empire with impunity, in particular against the lucrative French colonies in the
Caribbean. In late 1808, the French learned that
a British invasion of
Martinique was in preparation, and so orders were sent to Willaumez to take his fleet to sea, concentrate with the squadrons from Lorient and Rochefort and reinforce the island. Gambier had left a single ship of the line, Captain
Charles Paget's to keep watch on Brest, and Paget observed the French movements at 09:00, correctly deducing Willaumez's next destination. The blockade squadron off Lorient comprised the ships of the line , and under Commodore
John Beresford, watching three ships in the harbour under Counter-admiral
Amable Troude. In the early morning of 23 February, Willaumez sent the dispatch
schooner Magpye into Lorient with instructions for Troude to sail when possible and steer for the
Pertuis d'Antioche near Rochefort, where the fleet was due to assemble. Willaumez then took his fleet southwards, followed from 09:00 by Beresford's squadron. The French fleet passed between
Belle Île and
Quiberon and then around
Île d'Yeu, passing the Phares des Baleines on
Île de Ré at 22:30.
Gambier's blockade Assuming that the French fleet had sailed from Brest, Stopford sent the frigate under
Thomas Dundas to warn Gambier. The British commander had discovered the French fleet missing from its anchorage on 23 February and responded by sending eight ships under Rear-Admiral
John Thomas Duckworth south to block any French attempt to enter the
Mediterranean while Gambier turned his flagship, the 120-gun
first rate , back to
Plymouth for reinforcements. In the
English Channel Naiad located
Caledonia and passed on Stopford's message. Gambier continued to Plymouth, collected four ships of the line anchored there, and immediately sailed back into the Bay of Biscay, joining Stopford on 7 March to form a fleet of 13 ships, later reduced to 11 after
Defiance and
Triumph were detached. Shortly after departing Stopford's squadron off the Basque Roads,
Naiad had sighted three sail approaching from the north at 07:00 on 24 February. These were , and ; a French frigate squadron sent from Lorient by Troude, whose ships of the line had been delayed by unfavourable tides. The lighter frigates had put to sea without the battle squadron and sailed to join Willaumez the previous morning. Their passage had been observed by the British frigate and the
sloop , which had shadowed the French during the night. To the south, Dundas had signaled Stopford and the admiral left
Amethyst and to observe the French fleet while he took his main squadron in pursuit of the French frigates. Willaumez made no move to challenge Stopford or Gambier, although he had successfully united with the Rochefort squadron of three ships of the line, two frigates and an armed storeship, the captured British
fourth rate ship , commanded by Commodore
Gilbert-Amable Faure. Together the French fleet, now numbering 11 ships of the line, withdrew from the relatively open Basque Roads anchorage into the narrow channel under the batteries of the
Île-d'Aix known as the Aix Roads. The channel in which Willaumez chose to position his fleet formed a strong defensive position: an assailant had to cross the open Basque Roads and advance past the long and dangerous
Boyart Shoal hidden just below the surface. On entering the channel, an attacking force would then come under fire from fortified gun batteries on Île-d'Aix before finally encountering the French fleet. but more recent efforts in 1803, and 1807 had ended in failure. The developing stalemate saw activity on both sides of the bay. Among the French fleet there was dissatisfaction that Willaumez had not attacked Stopford when he enjoyed numerical superiority, taking the opportunity to break out of the anchorage and pursue his objectives in the Caribbean. Captain
Jacques Bergeret was so incensed that he wrote a letter criticising Willaumez to the
Minister of Marine Denis Decrès, and warning that the Aix Roads were highly vulnerable to British attack. Although
Emperor Napoleon apparently shared Willaumez's opinion, Decrès removed and censured both Willaumez and Bergeret, replacing the admiral with
Zacharie Allemand on 16 March. Word had arrived that a British expeditionary force had captured Martinique in late February, and so Allemand, lacking further instructions, prepared his defences. The French position was strengthened with a heavy
boom formed from chains and tree trunks laid between the Boyart shoal and Île-d'Aix. This boom measured long and wide, weighted in place with 5 1/4 tons of anchors, and yet was installed so subtly that the British fleet did not observe it. More than 2,000 French
conscripts were deployed on the Île-d'Aix, supporting batteries of
36-pounder long guns, although attempts to build a fort on the Boyart Shoal were identified, and on 1 April
Amelia attacked the battery, drove off the construction crew and destroyed the half-finished fortification. Allemand also ordered his captains to take up a position known as a
lignée endentée, in which his ships anchored to form a pair of alternating lines across the channel so that approaching warships could come under the combined fire of several ships at once, in effect
crossing the T of any attempt to assault the position, with the frigates stationed between the fleet and the boom. A number of officers in the fleet, in particular Rear-Admiral
Eliab Harvey, volunteered to lead such an attack, but Gambier hesitated to act, failing to take
soundings of the approaches or make any practical preparations for an assault.
Mulgrave's imperative , 1807,
GAC With Gambier vacillating in Basque Roads,
First Lord of the Admiralty Lord Mulgrave interceded.
Prime Minister Lord Portland's administration was concerned by the risk posed by the French fleet to the profits of the British colonies in the West Indies, and had determined that an attack must be made. Thus on 7 March ten fireships were ordered to be prepared. In considering who would be best suited to lead such an attack Mulgrave then made a highly controversial decision. On 11 March the frigate anchored at Plymouth and a message instructed Captain
Lord Cochrane to come straight to the Admiralty. Cochrane, eldest son of the
Earl of Dundonald, was an aggressive and outspoken officer who had gained notoriety in 1801
when he captured the 32-gun Spanish
privateer frigate
Gamo with the 14-gun brig . In the frigates and
Imperieuse he had caused havoc on the French and Spanish coasts with relentless attacks on coastal shipping and defences including, most relevantly, operations in the Rochefort area. At his meeting with Mulgrave, Cochrane was asked to explain a plan of attack on Basque Roads which he had drawn up some years previously. Cochrane enthusiastically described his intention to use fireships and massive floating bombs to destroy a fleet anchored in the roads. When he had finished, Mulgrave announced that the plan was going ahead and that Cochrane was to command it. In addition, Cochrane was also well aware of the fury this decision would provoke in the naval hierarchy; the appointment of a relatively junior officer in command of such an important operation was calculated to cause offense. Cochrane refused, even though Mulgrave pleaded that he had been the only officer to present a practical plan for attacking Allemand's fleet. Again Cochrane refused the command, but the following day Mulgrave issued a direct order: "My Lord you must go. The board cannot listen to further refusal or delay. Rejoin your frigate at once." Cochrane returned to
Imperieuse immediately and the frigate then sailed from Plymouth to join Gambier. The admiral had received direct orders from Mulgrave on 26 March ordering him to prepare for an attack, to which he sent two letters, one agreeing with the order and another disputing it on the grounds that the water was too shallow and the batteries on Île-d'Aix too dangerous. Gambier did not however learn of the leadership of the operation until Cochrane joined the fleet on 3 April and presented Mulgrave's orders to the admiral. The effect was dramatic; Harvey, one of
Nelson's Band of Brothers who had fought at
Trafalgar, launched into a furious tirade directed at Gambier, accusing him of incompetence and malicious conduct, comparing him unfavourably to
Nelson and calling Cochrane's appointment an "insult to the fleet". Gambier dismissed Harvey, sending him and his 80-gun back to Britain in disgrace to face a
court-martial, and then ordered Cochrane to begin preparations for the attack. Gambier also issued Cochrane with Methodist tracts to distribute to his crew. Cochrane ignored the order, but sent some of the tracts to his friend
William Cobbett with a letter describing conditions with the fleet. Cobbett, a Radical journalist, wrote articles in response which later inflamed religious opinion in Britain against Cochrane during the scandal which followed the battle. ==Night attack==