Wilson resisted pressure from Haig to conduct a limited attack until after 1 September. With another "Big Push" due on the Somme in September, Wilson's attack was postponed until October, and GHQ now wanted the whole of Vimy Ridge taken, which would mean a joint attack with XVII Corps. Edmonds later wrote that Wilson's preparations had laid the foundations for the successful capture of Vimy Ridge in April 1917. The attack at Vimy never took place as IV Corps was incorporated into Gough's Reserve Army, where it remained in reserve during the Battle of the Ancre.