Since 1948
In 1948, an "amalgamated" CMF unit, the 11th/44th Battalion (City of Perth Regiment) was formed. From 1960, following a reorganisation of the army, "A" (City of Perth) Company, 1st Battalion, Royal Western Australia Regiment maintained the traditions of the 11th Battalion.
A separate 11th Battalion, Royal Western Australia Regiment was reformed separately in 1967.
In 1987, the 11th Bn was merged with the 28th Battalion to form the current 11th/28th Battalion, Royal Western Australia Regiment.
Read more about this topic: 11th Battalion (Australia)