In the late 1950s the decision was made to amalgamate the all the regiments in each state into one regiment, as a result, the three regiments in Western Australia were amalgamated to form the Western Australia Regiment in 1960. The regiments were: • The City of Perth Regiment (
11th Battalion) • The Cameron Highlanders of Western Australia (
16th Battalion) • The Swan Regiment (
28th Battalion) The same year the Australian Army adopted
Pentropic Organisation. The three battalions Initially formed as a single battalion, in 1966 it was reorganised into first two, then three battalions. Two of these, the 11th Battalion and 28th Battalion were reduced to single companies in 1977 being the
11th Independent and
28th Independent Rifle Companies, then amalgamated into the single
11th/28th Battalion in 1987. The regiment perpetuates the traditions of three battalions of the
Australian Imperial Force: •
11th Battalion – the 11th Battalion was raised in 1903 when the Perth Rifle Volunteers was renamed as the 11th Australian Infantry Regiment. On the outbreak of the
First World War, volunteers from the 11th Regiment were recruited into the 11th Battalion of the
Australian Imperial Force. This unit saw action in the Middle East at Gallipoli and in France before the end of the war. For its service, the battalion was awarded a
King's Colour. The battalion was amalgamated with the 16th Battalion for a time, named as the 11th/16th Battalion for three years, before regaining its former title for service during the
Second World War. A second battalion, 2/11th Battalion, was raised for service overseas in 1939. This saw service in North Africa,
Greece and
Crete, where the majority of its men were captured following the
Battle of Retimo Airfield. Reformed in
Syria in 1941, the 2/11th Battalion moved to New Guinea in 1943. Both war raised battalions were disbanded in 1946. •
16th Battalion – the 16th Battalion was originally raised in September 1914. It was landed at
Gallipoli the following year, also seeing service in
France. The battalion was disbanded at the end of the war, then becoming a Citizen Military Force unit. It amalgamated with the 11th Battalion in 1930. A new 16th Battalion was raised in 1936 as the Cameron Highlanders of Western Australia. This battalion saw service in
Syria,
New Guinea and
Borneo before the end of the
Second World War. •
28th Battalion – the 28th Battalion was raised in 1915, and saw service in the Middle East and
Western Front before being disbanded in 1919. The battalion was reformed from its militia unit for the
Second World War, serving alongside the 11th Battalion in
New Britain. The
2/28th Battalion saw service overseas in North Africa, the Middle East and New Guinea. It was disbanded in 1946. ==Battle honours==