The 9th Battalion, Royal Australian Regiment (9 RAR) was a distinguished light infantry unit raised in 1967, notable for its service in Vietnam and its later merger to form the 8/9 RAR. Known as the "Death Battalion" during the Vietnam War, the unit is remembered for its significant role in conflicts like Operation Goodwood.

'THE 'DEATH BATTALION' — 9RAR. © | by Donald William Tate

You can find more historical information, and context for tributes on the Anzac Square and 9RAR National sites.