The 10th Battalion was back in action on 22–23 August as the Allied advance continued north of Proyart. The 10th Battalion was in a supporting role protecting the flank of the 1st Brigade. Wilder-Neligan visited the neighbouring battalion, and upon learning of some difficulties due to German positions in a wood, immediately deployed two companies to clear the area, and due to his initiative the advance was able to continue. The 10th Battalion continued in the advance towards the Hindenburg outpost line over the next few days before being relieved for a short period of training and rest. On 18 September, the battalion saw its last fighting of the war during the capture of the Hindenburg outpost line south of the village of Villeret. In heavy fighting, the unit captured the second and third objectives, and were then relieved and went into a period of training and rest. By this point, the battalion had been reduced to a strength of 517 men. On 10 October, Wilder-Neligan was awarded the French Croix de guerre. He was mentioned in despatches for the fifth and final time on 8 November. After the Armistice of 11 November, Wilder-Neligan remained with his battalion until 1 January 1919. He returned to Australia in July, arriving in Brisbane in September. For his service during the war, in addition to the decorations already mentioned, Wilder-Neligan was awarded the 1914–15 Star, British War Medal and Victory Medal.