The Battle of Martinique  took place off the Caribbean island of Martinique from 30 June to 7 July 1667, towards the end of the Second Anglo-Dutch War. A French fleet commanded by de la Barre was virtually destroyed by a Royal Navy squadron under Sir John Harman. Victory meant the English restored their position in the region shortly before the Treaty of Breda ended the war on 31 July 1667.
 From the second half of the 17th century onwards, Sugar plantations in the Caribbean were highly lucrative, and competed for by England, the Dutch Republic, and France among others. Even when the countries were theoretically at peace, the West Indies were often a source of conflict, and many colonies changed hands on a regular basis. Since they also provided access to the highly profitable trade with Spanish America, this theatre of the Second Anglo-Dutch War had important strategic and commercial value.  
 Shortly after fighting began in 1665, the English captured the Dutch colony of St Eustatius. When France entered the war as a Dutch ally in April 1666, ships led by local governor de la Barre captured the English possessions of St Kitts, Antigua and Montserrat. A Dutch naval expedition under Abraham Crijnssen retook St Eustatius, and in February 1667 captured Surinam, then an English colony. With much of the Caribbean under Franco-Dutch control, their combined fleet attacked Nevis on 20 May 1667, but were repulsed by Sir John Berry.
 Following this failure, de la Barre returned to Martinique, while Crijnssen planned an assault on the English Colony of Virginia. In early June, the balance of power in the region was transformed with the arrival in Nevis of an English squadron. This consisted of seven warships, two ketches, and two fireships, under Sir John Harman, an experienced sailor who fought in the First Anglo-Dutch War, as well as Lowestoft in 1665, and the Four Days' Battle in 1666. Reinforced by the 50 gun Jersey and frigate Norwich, Harman left Nevis on 25 June, planning to retake St Kitts.
 Although his attack on St Kitts failed, Harman then headed for Martinique after learning of de la Barre's presence. He arrived on 29 June to find nineteen French West India Company vessels and several local traders sheltering in the main bay. Although out gunned by their opponents, the French ships were protected by artillery based in Fort Saint Pierre, along with two smaller works, commanded by Governor Robert de Clodoré and Commodore de Loubière respectively.
 Harman's strategy was to force the French to use up their ammunition, since the blockade imposed by his ships meant they could not be resupplied. At 4:30 pm on 30 June, his squadron entered the bay and began firing on the French ships and batteries. Both sides suffered minor damage, before Harman withdrew an hour later. On the afternoon of 1 July, his flagship Lion and three other ships resumed the attack. After four hours of combat, the English vessels became becalmed and had to be towed out of range. Although Harman suffered some casualties and inflicted only moderate damage in this exchange, French ammunition stocks were beginning to run low.
 On 2 July, the English resumed their assault, this time engaging in a three-hour exchange of fire before withdrawing, and inflicting heavy casualties. Having spent 3 July carrying out repairs, Harman launched another attack next day. This lasted for some two hours, forcing the defenders to expend much of their remaining ammunition. The English withdrew again with minor damage, then spent two days awaiting fresh supplies from Barbados.
 When Harman resumed the assault on 6 July, he noticed French resistance had seriously declined. A fireship was released, setting fire to de la Barre's flagship Lys Couronée, which then spread to the Saint Jean and Lion d’Or. All three were soon virtually destroyed, prompting panicked crews to abandon most of the other ships. A confused action now commenced, both sides being hindered by poor light and heavy smoke. After five hours, the English withdrew, while the French began scuttling their remaining vessels, fearing another attack.
 Harman attacked for the final time on 7 July, this time concentrating fire on the three forts. Saint Pierre and Saint Robert were quickly destroyed, while Saint Sébastien held out longer before it too was abandoned by its garrison. His victory complete, Harman withdrew, with most of his ships nearly out of ammunition.
 Having achieved a substantial success, Harman left Martinique and returned to Nevis on 11 July. At the cost of eighty casualties, he had destroyed or captured most of the French fleet, with only two or three ships out of twenty-five recorded as having escaped. French losses were around 600 killed or wounded, plus another 400 captured. 
 Although the war officially ended on 31 July with the signing of the Treaty of Breda, this news did not officially reach Harman until early November. Using his ships to transport an army of 900 men, on 22 September he captured the French trading post of Cayenne, then retook Surinam on 13 October. While too late to have any significant impact on the result of the war, these successes forced Crinjeens to abandon his attack on Virginia, and return to the Caribbean. Under the terms of the peace treaty, Surinam became a Dutch colony, in exchange for confirming English possession of New Netherland. Cayenne was returned to France, England regained Montserrat and Antigua, while Saint Kitts was divided between the two countries.
 Rickard, J (22 August 2009), Battle of Martinique, 25 June 1667