The rank system forms the backbone of the Australian Army’s structure and defines a soldier or officer’s role and degree of responsibility. The ranks are based upon those of the British Army, although there are some differences in the way they are displayed.
Australian Army officers receive a commission that is personally signed by the Minister for Defence and the Governor-General of Australia, acting for the Monarch, Queen Elizabeth II, of Australia.
The Australian Army does not use the term 'enlisted' to describe its non-commissioned ranks. Instead, personnel who are not Commissioned Officers are referred to as Other Ranks. These personnel are Soldiers, Non-Commissioned Officers (NCOs) and Warrant Officers (WOs).