Fuller-Elliot-Drake was an officer in the 52nd (Oxfordshire) Regiment of Foot, joining in 1804, and serving under Sir John Moore during the 1808 expedition to Sweden, and in the Battle of Corunna. Serving in the Walcheren Expedition in 1809, Fuller-Elliot-Drake returned to the Peninsula, where he was present at the Battles of Sabugal, Fuentes d'Onor, Ciudad Rodrigo, and San Munos, where he was severely wounded. He left the Peninsula in 1812.