Complex sentence: He commanded 603 (City of Edinburgh) Squadron in the Royal Auxiliary Air Force from 1934-38 and served during World War II, being twice Mentioned in Despatches and awarded the Air Force Cross in 1938 and the OBE in 1941.
Split into simpler sentences: He commanded 603 (City of Edinburgh) Squadron in the Royal Auxiliary Air Force from 1934-38. Douglas-Hamilton was twice Mentioned in Despatches and awarded the Air Force Cross in 1938 and the OBE in 1941.