Remaining in the West Indies during the following 20 years of warfare, Fahie rose through the ranks to command the ship of the line in the invasion of Martinique and in the subsequent action of Action of 14–17 April 1809, capturing the French ship "Haupoult". In 1810 he participated in the invasion of Guadeloupe and transferred to European waters for the first time since 1780. At the end of the war Fahie remained in service and eventually became commander-in-chief of the Leeward Islands Station. He retired in 1824 and was subsequently knighted, settling in Bermuda with his second wife.