The 1st Aviation Brigade is an aviation brigade of the British Army. Most of its units are from the Army Air Corps (AAC). It was stood up on 1 April 2020 by combining the Wattisham Flying Station Headquarters (WFS HQ), formerly the Attack Helicopter Force (AHF) at Wattisham and the Aviation Reconnaissance Force at the Royal Naval Air Station Yeovilton. It will reach initial operating capability on 1 April 2021 and full operating capability by 1 January 2023.