In the afternoon of May 2, 1915, the First Canadian Infantry Brigade was moved to the support of the Tenth and Twelfth Infantry Brigades (British) because of the gas which flooded the entire front. The poisonous fumes had disabled the troops of the Twelfth Brigade, and they were forced to fall back, but the Tenth Brigade stood fast. During the night of May 3, 1915, and the morning of the 4th, the First Canadian Infantry Brigade withdrew from the line and went into billets at Bailleul. General Alderson in the night of May 4 handed over the command of the section to the general officer commanding the Fourth Division, withdrawing the Third Infantry Brigade on that date and the Second Canadian Infantry Brigade on the following day. The second phase of the Second Battle of Ypres dates from the time that the British line was readjusted. An account of the noble part played by the Princess Patricia's Light Infantry in subsequent operations must be recorded. The regiment from April, 1915, occupied trenches south and west of those held by the Canadian Division, where they were constantly under shell fire. The "Princess Pats" were eager to take part in the battle to the north, where their brothers in arms were engaged in a desperate struggle, but not until May 4 were they afforded an opportunity. On that date the regiment occupied a new line. A strong enemy attack developed which was beaten off. Throughout the day the regiment was heavily bombarded, and some of their trenches were destroyed. During the night they were relieved by the King's Shropshire Light Infantry and withdrew to reserve trenches. Major Gault arrived on May 5, 1915, and took over the command, Lieutenant Colonel Buller having lost an eye from the splinter of a shell. In the night of May 6, 1915, the "Princess Pats," who had been fretting over their inaction, were sent to relieve the 2d Shropshire's in the trenches. The Germans maintained a heavy bombardment throughout the night and the next day. On May 7, 1915, the roll call showed the strength of the battalion as 635. The battalion the next day came under heavy shell fire, which began on the right flank, followed by enfilading the fire trenches. Preceded by gas shells, the Germans advanced on the double from the hill in front of the trench, but were beaten back by rifle fire. Every telephone wire having been cut by 6 a. m., it was necessary to dispatch every signaler, pioneer, orderly, and servant at battalion headquarters to man the support trenches. The struggle was short but intense, and the Germans were thrown back, leaving many dead and wounded on the field. But though repulsed, the enemy were still able to inflict great damage. They had installed several machine guns in buildings near, and could sweep the parapets of the Canadian fire and support trenches. A runner was dispatched to brigade headquarters to inform them of the situation.