The action of 24 March 1811 was a minor naval engagement of the Napoleonic Wars, fought as part of the Royal Navy blockade of the French English Channel ports. By 1811, Royal Navy control of the French coast was so entrenched that French ships were unable to travel safely even in French territorial waters. In late 1810, French frigates and sailed from Le Havre to join with a larger squadron at Cherbourg, but were intercepted by a British frigate squadron and forced to shelter at Saint-Vaast-la-Hougue. There they came under sustained attack and Elisa was destroyed, Amazone successfully slipping back to Le Havre under cover of darkness. To prevent Amazone from escaping once more, the British blockade squadron was reinforced.