Before relocating to Darwin, the regiment was stationed in Townsville (Queensland) and Ingleburn (New South Wales). The three of the regiments current Gun batteries reflect their formation in Egypt as part of the First Australian Imperial Force 21st Field Artillery (Howitzer) Brigade, which used howitzers. The 101 and 103 Batteries, including the 102 Battery, served in France, also as part of the 1st Division. The 101st Medium Battery was originally formed as the 101st Howitzer Battery on 8 March 1916, at Tel-el-Kebir, from the members of the 1st Field Artillery Brigade, which formation served at Gallipoli. Although disbanded after the war, in the early 1920s, the Battery was reformed as a militia unit in the Newcastle area, but in 1946 it was again disbanded. In 1957, it was established again as the 101st Field Battery, at the Holsworthy Barracks, as part of the 1st Field Regiment (RAAC). It served in Malaya (1959/61), and was deployed twice to South Vietnam (1966–67 and 1969–70). It relocated to Wacol in 1970 before moving again to Enoggera in 1982 to rejoin the 1st Field Regiment. The 102nd Field Battery was formed in 1957 at Holsworthy Barracks, Sydney, as part of the 1st Field Regiment. The battery served during the Indonesia–Malaysia confrontation between May and August 1965. While in Malaysia, the battery provided fire support during the Kesang River incursion by Indonesian forces. While serving in North Borneo, equipped with L5 Pack Howitzers, the battery provided defensive support to the 3rd Battalion, Royal Australian Regiment, as well as Ghurkha, and British Battalions undertaking operations; it also fire support for secret Claret operations in Indonesian territory. On 18 April 1966, the battery was transferred to the 12th Field Regiment with the 104th Field Battery. Arriving in Vietnam as part of Australia's commitment to the Vietnam War in March 1968, replacing the 106th Field Battery and was equipped with the 105mm M2A2 Howitzer. On the night of 12 May 1968, while at Fire Support Base Coral, a M2A2 howitzer was captured by North Vietnamese troops who temporarily overran part of the base; however, the gun was recaptured shortly afterwards. The 102nd Field Battery was replaced in February 1969, and returned to Australia. During its tour of duty, the battery had been positioned at 30 different Fire Support Bases, fired 60,000 rounds and received the following decorations: 1 MM, 2 MID, 1 MBE and 1 BEM.