Complex sentence: The 11th/28th Battalion, Royal Western Australia Regiment (11/28 RWAR) is an Australian Army reserve infantry battalion located in Western Australia and one of the two battalions of the Royal Western Australia Regiment, the infantry component of the 13th Brigade.
Split into simpler sentences: The 11th/28th Battalion, Royal Western Australia Regiment (11/28 RWAR) is a a Reserve infantry battalion of the Australian Army. Located in Western Australia, it is one of the two battalions of the Royal Western Australia Regiment, and forms the infantry component of the 13th Brigade.