The Action of 18 September 1810 was a naval battle fought between British Royal Navy and French Navy frigates in the Indian Ocean during the Napoleonic Wars. The engagement was one of several between rival frigate squadrons contesting control of the French island base of Île de France, from which French frigates had raided British trade routes during the war. The action came in the immediate aftermath of the Battle of Grand Port, in which four British frigates had been lost, and just four days after a fifth British frigate had been captured and subsequently recaptured in the Action of 13 September 1810. In consequence of the heavy losses the British force had suffered, reinforcements were hastily rushed to the area and became individual targets for the larger French squadron blockading the