The 22nd Battalion relieved the 23rd Battalion in Malt Trench (A & C Coys), Malt Support (B Coy) and Layton Lane and outposts. Throughout his retirement the German’s policy was to man selected strong posts and hold them with machine gun crews. These crews were often scattered along a continuous trench, all protected by wire and were very difficult to locate. Patrolling was dangerous and it was in this manner that Lieut Massie (photograph right) went missing in front of the then uncaptured Grevillers line, and was later reported killed in action having been taken behind German lines.