Complex sentence: After first graduating, McMahon worked as a solicitor, before serving in the Army during the Second World War, when he was commissioned in the Citizens Military Force (now Australian Army Reserve) and later transferred to the Australian Imperial Force.
Split into simpler sentences: After first graduating, McMahon worked as a solicitor, before serving in the Army during the Second World War. He was commissioned in the Citizens Military Force (now Australian Army Reserve) and later transferred to the Australian Imperial Force.