The action of 31 March 1800 was a naval engagement of the French Revolutionary Wars fought between a Royal Navy squadron and a French Navy ship of the line off Malta in the Mediterranean Sea. By March 1800 Valletta, the Maltese capital, had been under siege for eighteen months and food supplies were severely depleted, a problem exacerbated by the interception and defeat of a French replenishment convoy in mid-February. In an effort to simultaneously obtain help from France and reduce the number of personnel maintained in the city, the naval commander on the island, Contre-amiral Pierre-Charles Villeneuve, ordered his subordinate Contre-amiral Denis Decrès to put to sea with the large ship of the line Guillaume Tell, which had arrived in the port shortly before the siege began in September