The 4th/19th Prince of Wales's Light Horse (4/19 PWLH) is a cavalry regiment of the Australian Army. The regiment in its current composition was formed in 1948 when the Citizens Military Force (CMF) was re-raised after the completion of the demobilisation process following the end of the Second World War and it was formed through the amalgamation of three previously existing regiments. Through these predecessor units, 4/19 PWLH can trace its lineage back to the 19th century and today it is the custodian of the battle honours earned by these units. The regiment had a Regular squadron, 1 Troop 4th/19th Prince of Wales Light Horse Regiment, which was posted to South Vietnam in 1965 where it was attached to 1 RAR operating out of Bien Hoa Province. It returned to Australia on 28 May 1966 and became part of the Regular cavalry units that continue to exist in the Australian Army today. These units subsequently served during the Vietnam War and many of their personnel continued to wear regimental accoutrements while in South Vietnam. Today 4/19 Prince of Wales Light Horse Regiment is an Australian Army Reserve regiment and forms part of the 4th Brigade, 2nd Division based in Victoria. As part of the restructure of the Royal Australian Armoured Corps (RAAC) units of the Australian Army Reserve it is now equipped with Bushmaster Protected Mobility Vehicles. History 1948–2005 The regiment was formed in 1948 as the 4th/19th Armoured Regiment (Prince of Wales's Light Horse) as a unit of the Citizens Military Force through the amalgamation of three other regiments: the 4th (Corangamite) Light Horse, the 17th (Prince of Wales's) Light Horse, and the 19th Light Horse (Yarrowee Light Horse). Through these, the regiment can trace its lineage through many units, including: the Kyneton District Mounted Rifle Corps, the Royal Volunteer Cavalry Regiment, the 17th Light Horse, the 17th Prince of Wales Light Horse, the 19th Yarrowee Light Horse, the 20th Corangamite Light Horse, the 4th Corangamite Light Horse, the 4th Light Horse AIF, and the 2/4th Armoured Regiment. The record of the 4th Light Horse in the 1914–18 war is without equal in the Australian Imperial Force. It was the only Australian unit to see service on all three fronts, Western Front (France), Gallipoli and Palestine and was granted a total of 24 Battle Honours of which 10 are carried on the guidon. Probably the most notable action of