For ten days after this the southern front was quiet, and the only change consisted in the withdrawal of the Fifty-sixth and the substitution of the Thirty-seventh Division. On May 30 a minor operation was carried out upon a small section of German trench by the 88th Brigade, {88} assisted by the 8th East Lancashires from the 112th Brigade. This attack had some partial success, but was eventually driven out of the captured by a strong counter-attack, with the result that a small body of the 3rd Middlesex Regiment, some thirty in number, were isolated and taken or slain. Greater success, however, attended the next operation, which was an attack upon June 14 upon Infantry Hill, which included Hook Trench and Long Trench. This very successful advance was carried out by the 1st Gordons and 2nd Suffolks, the two regular battalions of the 76th Brigade. The whole position was stormed by a surprise attack and 180 prisoners were taken. A counter-attack was broken up by the British artillery. The losses of the storming battalions were well under 400 men. Two days later the Germans again made a strong effort to thrust back the British advance, but again they failed with considerable loss, save at the more advanced posts which they occupied. A British attempt next morning to regain these lost posts was not successful. Upon June 18, the anniversary of the great day when Germany and Britain fought together for freedom, there was a fresh attack to retake Hook and Long Trench. It surged up to and into the trenches, but could not disperse the sturdy men of Suffolk, who held them. The German wave lost its momentum and broke up into pools, which soon were swept back with the ebbing tide. Nearly 200 prisoners were taken in this spirited affair. [Sidenote: June 5]