In the area around Mouquet Farm and in the trenches south of Thiepval the British captured during the day one German officer and sixty-six of other ranks. British aircraft displayed great activity in this sector, dropping five tons of bombs on points of military importance behind the enemy lines. One hostile machine was brought down, while two British machines failed to return. South of the Ancre the British made slight advances, capturing four German officers and fifty-five of other ranks.
A great battle developed north of the Somme on September 2, 1916, in which the British and French forces took thousands of prisoners and captured important territory. After intense artillery preparation the French infantry cooperating with British troops attacked the German positions on a front of about three and three-quarter miles between the region north of Maurepas and the river. The strong German forces engaged were unable to resist the onslaught of the Allied troops. The villages of Forest, east of Maurepas, and Cléry-sur-Somme were captured, as well as all the German trenches along the route from Forest to Combles as far as the outskirts of the last place. The Germans launched with heavy forces a counterattack against the conquered positions, but were driven back by the heavy fire of the French batteries. The French official reports gave the number of unwounded prisoners captured in this battle as exceeding 2,000, and the booty taken included twelve guns and fifty machine guns. German aircraft which engaged British flyers during the progress of the battle were driven off with a loss of three machines destroyed and four badly injured. The British lost three.
Fighting on the Somme and Ancre was continued with increased severity on September 3, 1916. The Germans stubbornly contested the British advance, but were unable to gain any material advantage except at Ginchy, occupied by the British, who were driven out of all but a small portion of the place. As an offset to this loss the British troops captured the strongly fortified village of Guillemont and the German defenses on a front of one and two-third miles to an average depth of about 800 yards. The British took during this battle over 800 prisoners.