Although the weakened 69th Bde was present at the Second Battle of El Alamein, most of 50th (N) Division's fighting was done by 151st Bde. However, after the pursuit across North Africa to Tunisia, 69th Bde was moved up to spearhead Eighth Army's operations against the Mareth Line by capturing the outposts on the night of 16/17 March 1943. Supported by the whole divisional artillery the brigade took all its objectives, and next day the 5th East Yorkshires were pushed a further 2 miles taking the viewpoint of Mestaoua. The "Official History" notes 50th (N) Division's pleasure in getting its first good publicity since its dashing break-out from Gazala the year before. 151st Brigade led the division's attack on the main Mareth position on 20/21 March, but failed to gain a crossing of the Wadi Zigazou. It was reinforced by 5th East Yorkshires for a renewed attempt the following night, when the battalion took part of Ksiba Est, but it was not until 22/23 March that the division achieved a bridgehead. By then the rest of Eighth Army had begun a left hook round the Mareth Line that decided the battle.