The Siege of Pensacola (also called the Battle of Pensacola) marked the culmination of Spain's conquest of Florida from Great Britain during the Revolutionary War in 1781. Spanish troops under Bernardo de Gálvez began an amphibious assault on the city in March 1781, steadily advancing towards Fort George on Gage Hill. On the morning of May 8, artillery fire sparked a fire within the Queen's Redoubt that detonated the powder magazine, allowing Spanish troops to capture the redoubt. British Governor Peter Chester and Major General John Campbell surrendered Fort George and Pensacola shortly thereafter.