1st Regiment Royal Horse Artillery was formed on 1st May 1938, although the individual batteries had existed for some 145 years beforehand. It has been extensively involved in the North African Desert Campaign, Aden, Northern Ireland, Kosovo, Iraq and Afghanistan. It is currently preparing to return to Afghanistan in the summer of 2013.
The Regiment consists of 3 AS90 Gun Batteries, a TAC Battery and an HQ Battery. The Regiment’s job is to provide Offensive Fire Support to the infantry and it does this by embedding Fire Support Teams (FSTs) with the infantry companies or armoured squadrons, who then request the appropriate firepower. This firepower is not just restricted to AS90 (155mm) or Light Gun (105mm) but Mortars, Close Air Support, Guided Missiles and Attack Helicopters. Each Gun Battery has 4 FSTs and can man up to 6 Guns and the TAC Battery consists of 6 FSTs.
The Chestnut Troop - Horsed from the outset exclusively with chestnut-coloured horses, Lord Wellington asked as to the whereabouts of "The Chestnut Troop" during the Battle of Waterloo. This unofficial title stuck until Edward VII sanctioned that the battery was designated A Battery (The Chestnut Troop) RHA. As the senior battery, it takes position at the Right of the Line when on parade.
B Battery - The battery does not have an official battle honour, but the title 'The Dragon Troop' is used after the battery was given the military order of the Dragon during the Boxer Rebellion of 1900. Each gun sub has a different Chinese Dragon painted on the shield of his gun.
E Battery - On the 22 August 1914 at 0930 E Battery fired the first artillery rounds of the WW1 at Bray, and subsequently fought in virtually all the battles on the Western Front.
L (Nery) Battery - As 1st Troop, of the Bengal Horse Artillery, the Troop was used as quick-fire support to the armies of the East India Company. The Troop was later to become 'L' Battery. Based in Agra, India until the outbreak of the Nepal War in 1814, the battery saw action during the siege of the great fortress of Bhurtpore, and open warfare in both Sikh Wars.
O HQ Battery (The Rocket Troop) - The 2nd Rocket Troop, commanded by Captain Richard Bogue, played a most distinguished part in the in the Battle of Leipzig in October 1813 as the only unit of the British Army present, and was attached to the Bodyguard of the Crown Prince of Sweden.