20th Surveillance and Target Acquisition Regiment, Royal Australian Artillery

The 20th Surveillance and Target Acquisition Regiment, Royal Australian Artillery is an Australian Army Regiment which was raised in 2006. The Regiment is responsible for providing the Australian Army with artillery spotting and tactical reconnaissance. The Regiment is based at Gallipoli Barracks in Enoggera, Queensland.

Under current plans, the regiment will consist of:
 * Regimental Headquarters
 * 131st Surveillance and Target Acquisition Battery
 * 132nd Unmanned Aerial Vehicle Battery
 * Combat Service and Support Battery

All elements of the Regiment other than the 131st Surveillance and Target Acquisition Battery are currently being formed. The 132nd UAV Battery was to operate the Army's Israel Aircraft Industries I-View UAVs from 2010, but the acquisition of these UAVs was canceled in 2009. The Regiment currently operates Boeing ScanEagle UAVs, and has deployed UAV detachments to Iraq and Afghanistan.

On on 1 March 2010, 20STA became part of the re-raised 6th Brigade. After the cancellation of the I-View, in August 2010 the AAI Shadow 200 was approved for purchase, with the first systems expected to be operating in Australian hands by the end of 2011.