John ChappleField Marshal Sir John Lyon Chapple GCB, CBE was a career British Army officer in the second half of the 20th century. He served as Chief of the General Staff, the professional head of the British Army, from 1988 to 1992. Early in his early military areer he saw action during the Malayan Emergency and again during the Indonesia–Malaysia confrontation and later in his career he provided advice to the British Government during the Gulf War. Read More Read Less