Complex sentence: He became a member of the Southern Rhodesia legislative assembly in 1939, but his service was interrupted by the Second World War-spent in West Africa and as an Air Despatcher with the Royal Air Force in the United Kingdom.
Split into simpler sentences: He became a member of the Southern Rhodesia legislative assembly in 1939, but his service was interrupted by the Second World War. During the Second World War, he was in West Africa and was an Air Despatcher with the Royal Air Force in the United Kingdom.