Before 1947, battle honours awarded to RAN ships and units were administered solely by the British Admiralty.[1] On 9 June 1947, an Australian "Badges, Names and Honours Committee" was established to administer and make recommendations to the Admiralty (and after the 1964 merger, the Naval department of the British Ministry of Defence) on battle honours, naval heraldry, and ship names.[2] The RAN used the same honours list as the Royal Navy until the 1980s, with the exception of adding a battle honour for service in the Vietnam War.[3] A large scale overhaul of the RAN battle honours system was completed in 2010, which included recognition of post-Vietnam operations, along with previous battles and campaigns not included in the British honours list.[4]
Battle honours awarded to a ship are inherited by subsequent ships of the name.[3] In addition, until 1989, Australian warships would inherit honours from British warships of the same name: for example, the Daring-class destroyer HMAS Vampire inherited honours from both the RAN V-class destroyer of the same name and the Royal Navy submarine HMS Vampire.[5] One factor behind the change was so that Australia's HMAS Newcastle, the first ship to be named after Newcastle, New South Wales, would not inherit the battle honours of the eight British ships named after Newcastle on Tyne on entering service: most of the awards predated Australia's existence as a nation.[1]
In addition to honours for large-scale battles, naval battle honours also include actions where the opposing side consisted of a single ship.[6] Only three 'action' honours were awarded during the 20th century, with RAN warships receiving all three.[6]
Note: The year ranges given are for the entire scope of the battle honour, particularly for campaigns. Individual ships that did not participate for the full duration were recognised with the battle honour, but with a reduced year range reflecting their participation.
Pre-Federation conflicts
Note: Battle honours in this category were awarded to ships and units of the various colonial navies, and have been inherited by the RAN.
Involvement in the Vietnam War.[48] Originally limited to units that saw combat, but later expanded to include transport and logistic support ships and their escorts.
Kuwait 1991
Deployed to the Middle East during the Gulf War.[49]
East Timor 1999–2000
Involvement in INTERFET peacekeeping operations in East Timor.[50]