Faced with stiffening defences and the news that the Eighth Army had reached Medenine, only a few kilometres from the Mareth Line, Rommel decided to call off the attack and withdraw on the night of 22 February 1943 to support the Mareth defences, hoping that the Kasserine attack had caused enough damage to deter any offensive action from the west for the moment. The Axis forces from Kasserine reached the Mareth line on 25 February. It was after the battle of Kasserine Pass that the 6th Armoured Division was reorganised and equipped with the M4 Sherman tank. In March 1943 the division was assigned to the recently arrived IX Corps (Lieutenant-General John Crocker) the former first GOC of the division, who was later wounded in a training accident and replaced by Lieutenant-General Brian Horrocks. The division was the spearhead of the final assault by the First Army in May 1943, breaking through to Tunis. The 6th Armoured Division went on to take the surrender of the famous 90th Light Division and participated in the round up and capitulation of all Axis forces in North Africa in May 1943.
