Complex sentence: As a national serviceman, having won the Sword of Honour during training, Norman spent two years in the RAF as a fighter pilot and afterwards joined the Royal Auxiliary Air Force No.601 Squadron RAF.
Split into simpler sentences: As a national serviceman, he won the Sword of Honour during training, before spending two years in the Royal Air Force as a fighter pilot. He later joined the Royal Auxiliary Air Force No.601 Squadron RAF.