50th (Northumbrian) Division moved up from Tripoli to the front and led Eighth Army's attack on the Mareth line on the night of 19/20 March It took three nights' hard fighting to establish bridgeheads over the Wadi Zigzaou, and in the end the Mareth Line was taken by a wider outflanking move. Then on 6–7 April 50th (N) Division followed 4th Indian Division to breach the anti-tank ditch and wadi at the Battle of Wadi Akarit, another difficult operation but this time successful. The division then followed up and took part in the fighting round Enfidaville before the Tunisian campaign ended with the capture of Tunis on 13 May. Although Axis air attacks against LGs, artillery positions "etc" had been frequent early in the campaign, these had tailed off as the Allies achieved air superiority. By this stage of the war 25th LAA Rgt was commanded by Lt-Col G.G.O. Lyons, MBE.