This army contained 16 divisions, three per corps, but with a fourth division in VIII Corps. Each division could muster around 15,000 men, so the total, with corps troops and the Army reserve, came to some 400,000 men. To this can be added, for the initial onslaught on the German line, two divisions from VII Corps of Third Army, the 46th and the 56th, who would attack the salient at Gommecourt, north of Fourth Army line. More than half the soldiers in this force had never been in action before.