 This exercise, a 10-day event codenamed "Atlantic", saw U.S. V Corps (U.S. 1st Armored Division, the 59th (Staffordshire) Infantry Division, and the British 72nd Infantry Brigade) engage British Forces Northern Ireland (the U.S. 34th and the 61st Infantry).On 15 September, Major-General John Carpenter took command of the division, replacing Fullbrook-Leggatt.The 61st Division returned to England on 4 February 1943, and was based in Essex under the command of XI Corps.