If you look at the diagram on page 189, you will see how we were holding the salient on the morning of 22nd April. Our lines ran in a semicircle from Steenstraate, on the Yser canal, about four and a half miles to the north of Ypres, right round to the Ypres-Comines canal, about two miles south of the city. Nowhere was the salient more than four and a half miles across; every part of it, including Ypres itself, was, therefore, within range of the enemy's big guns. As the Gaspipe Officer tells us, the Germans held the higher ground, and were thus in a very favourable position for sweeping all parts of the salient with their fire. All the roads to the outer rim of the salient spread out from Ypres like the spokes of a wheel. Our supply and ammunition columns were, therefore, under fire the moment they entered or passed by the city. The British forces had greatly increased since those days of terrible trial in the preceding October and November, when, with never more than 150,000 men, we had beaten back the furious onrush of at least half a million Germans, and had blocked for ever the coveted road to Calais. We had now some 500,000 men at the front, and we felt, after our great assault at Neuve Chapelle, that we had the upper hand of the enemy, and that henceforth the attack was with us and the defence lay with him. Before, however, he sank into this secondary position he meant to make another desperate effort to reach the Channel ports. This long and fierce struggle, which I am now about to describe, is known as the Second Battle of Ypres. [Illustration: Second Battle of Ypres. Sketch showing position at the Ypres salient on the morning of April 22, 1915.] Look again at the diagram. The Allied line from Steenstraate to Langemarck was held by Turcos and Spahis, French colonial troops from Algeria. Continuing the curve for 5,000 yards was the Canadian Division, consisting of three infantry brigades, in addition to artillery brigades. The first infantry brigade was in reserve, the second (8th and 5th Battalions) lay on the right, and the third (13th and 14th Battalions) on the left, next to the French. The whole division was commanded by General Alderson; Brigadier-General Turner commanded the 3rd Brigade, and Brigadier-General Curry the 2nd Brigade. The trenches, which the Canadians had taken over from the French, were badly made and very wet, and could only be improved with difficulty, as the dead had been buried in the bottoms and the sides. The 28th Division continued the line to the south-east corner of Polygon Wood, where Princess Patricia's Own were stationed. From the wood to Hill 60 the remainder of the salient was manned by the 27th Division.