6th Engineer Support Regiment (Australia)

The 6th Engineer Support Regiment (6 ESR) is specialised engineer regiment of the Australian Army. Formed on 13 January 2003, it was created in order to serve as the administrative headquarters for a number of squadron-level subunits, which had previously been independent.

Attached to the 6th Brigade, the regiment's subunits – the 17th and 21st Construction Squadrons, the 1st Topographical Survey Squadron and the 20th Explosive Ordnance Disposal Squadron – are spread across three different locations: Gallipoli Barracks, Enoggera; Zabul Lines, RAAF Base Amberley; and Holsworthy Barracks. These subunits are supported by a fifth subunit, the Operational Support Squadron.

By virtue of the regiment's function, the majority of its 600 personnel are regular soldiers drawn from the Royal Australian Engineers, although various other corps provide administration clerks, drivers, mechanics and quartermasters. Personnel from the regiment have undertaken numerous deployments since its establishment, and the regiment provided the headquarters element for Reconstruction Task Force 4, which deployed to Afghanistan in 2008 as part of Operation Slipper.

Structure
As of July 2012, 6 ESR was structured as follows:


 * Amberley
 * Regimental Headquarters
 * 21st Construction Squadron
 * Operational Support Squadron (headquarters element)


 * Enoggera
 * 1st Topographical Survey Squadron
 * 20th Explosive Ordnance Disposal Squadron


 * Holsworthy
 * 17th Construction Squadron
 * Operational Support Squadron (main element)