Admiral of the Fleet Michael Cecil Boyce, Baron Boyce KG, GCB, OBE, DL (born 2 April 1943) is a former Royal Navy officer who now sits as a crossbench member of the House of Lords.Boyce commanded three submarines and then a frigate before achieving higher command in the Navy and serving as First Sea Lord and Chief of the Naval Staff from 1998 to 2001 and then as Chief of the Defence Staff from 2001 to 2003.