North of the Somme, despite the persistent bad weather, the French troops on November 1 and 2, 1916, captured German trenches northeast of Les Boeufs and a strongly organized system of trenches on the eastern outskirts of St. Pierre Vaast Wood. By these operations the French took 736 prisoners, of whom twenty were officers, and also twelve machine guns. The British forces on the Somme on the night of November 2, 1916, by a surprise attack captured a German trench east of Gueudecourt and carried out a successful raid on German trenches near Arras. British aircraft, which had been actively engaged in bombing German batteries, in the course of several combats in the air destroyed two hostile machines. On November 4, 1916, the Germans attempted by a counterattack to regain the trenches won by the British near Gueudecourt, but were driven off with heavy losses, considering the number of troops engaged. The Germans left on the field more than a hundred dead, and the British captured thirty prisoners and four machine guns. British aircraft, which continued to operate despite the heavy weather that prevailed, suffered heavily on November 4, 1916. One of their machines which had attacked and destroyed a German aeroplane was so badly damaged that it fell within German lines and four other British aircraft did not return. German attempts to wrest from the French the trenches they had won on November 1, 1916, on the western edge of St. Pierre Vaast Wood were unsuccessful, though at some points the German troops succeeded in penetrating the lines. But their foothold in the French trenches was only temporary, and they were driven out with considerable losses. On Sunday, November 5, 1916, the French took the offensive south of the village of Saillisel, attacking simultaneously on three sides the St. Pierre Vaast Wood, which had been strongly organized by the German troops. As a result of this spirited attack the French captured in succession three trenches defending the northern horn of the wood, and the entire line of hostile positions on the southwestern outskirts of the wood. At this point the fighting was of the most desperate description. The Germans fought with great bravery, making violent counterattacks, which the French repulsed with bomb and bayonet, and capturing during the operations on this front 522 prisoners, including fifteen officers. The British troops, which had won 1,000 yards of a position on the high ground in the neighborhood of the Butte de Warlencourt on November 5, 1916, were forced to relinquish a great part of their gains when the Germans made a violent attack on the following day.