Here 66th Bde re-assembled and was re-equipped; it was ready for action again on 19 April under VI Corps and spent the next three months exchanging fire with hostile batteries and engaging in HF tasks. In late August, with the Allied Hundred Days Offensive under way, 66th Bde moved up to Arras to support Third Army's attacks at the Scarpe and the Drocourt-Quéant Switch Line. From 23 September 122nd Siege Bty was firing to cut barbed wire for the Battle of the Canal du Nord, after which it moved to forward positions close to the canal, where it received considerable hostile fire. Next it supported the capture of Niergnies near Cambrai on 8 October. During the Battle of the Selle on 20 October the battery was supporting the attack on the high ground east of Haussy when a single high-velocity shell killed six men and wounded another 16. At the beginning of November 66th Bde was at Vendegies-sur-Écaillon, supporting XXII Corps' movement to outflank Valenciennes. Third Army's next setpiece attack was cancelled when the Germans retreated. The brigade had reached Jenlain by the time of the Armistice.