 In June, Wilder-Neligan was appointed a Companion of the Order of St Michael and St George for his work as commanding officer of the 10th Battalion from September 1917 to February 1918.On 28 June, he was sick with influenza but still on duty when an opportunity for "peaceful penetration" of the German trenches arose.Directed to conduct a demonstration in front of Merris, where the 10th Battalion held the front line, Wilder-Neligan took advantage of the accompanying barrage to encourage his two line companies to capture advanced German posts.