Royal Western Australia Regiment

• The City of Perth Regiment
• The Cameron Highlanders of Western Australia
• The Swan Regiment

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, then amalgamated into the single 11th/28th Battalion in 1987.

Battle honours

11th/28th Battalion

• South Africa 1899–1902
• The Great War: Pozieres, Messines, Passchendaele, Mont St.Quentin, Landing at Anzac, Somme 1916–1918, Bullecourt, Ypres 1917, Amiens, Hindenburg Line
• World War II: Capture of Tobruk, Defence of Tobruk, El Alamein, Brallos Pass, Liberation of New Guinea, Kokoda Trail, Borneo, Damour, Lae-Nadzab, Labuan

16th Battalion

• South Africa 1899–1902
• World War I: Somme 1916–1918, Pozieres, Bullecourt, Messines 1917, Ypres 1917, Polygon Wood, Passchandaele, Arras 1918, Hamel, Amiens, Albert 1918, Hindenburg Line, Epehy, France and Flanders 1916–1918, Anzac, Landing at Anzac, Defence of Anzac, Suvla, Sari Bair, Gallipoli 1915, Egypt 1915–1916
• World War II: North Africa 1941, Syria, Syrian Frontier, The Litani, Sidon, Wadi Zeini, Damour, South West Pacific 1942 – 1945, Kokoda Trail, Isurava, Eora Creek, Templetons Crossing, Efogi-Menari, Ioribaiwa, Buna-Gona, Gona, Liberation of Australian New Guinea, Ramu Valley, Shaggy Ridge, Borneo, Balikpapan, Waitavolo

Alliances