The small gains made by the French and British during the first weeks of February, 1917, were not especially important in themselves, but each slight advance brought the Allies nearer to important German positions. The daily trench raids served to harass and bewilder the common enemy, and while the number of prisoners taken were few in each instance, in the aggregate the number was impressive. The British and French were not disposed to squander lives recklessly in these minor exploits, and it was only when they were within striking distance of an important objective that they operated with strong forces and the most powerful guns at their command.
The Canadians, who always displayed a special liking for trench raids, and were uncommonly successful in such operations, engaged in one on the morning of February 13, 1917, which merits description in some detail. The attack was made on a 600-yard front between Souchez and Givenchy. The Germans under the shell storm that shattered their trenches had retreated to the depths of their dugouts, and while it lasted few ventured forth to oppose the raiders. The British bombardment had been so effective that the German machine-gun emplacements must have been destroyed or were buried under débris, for only a few guns spoke out as the Canadians "went over." The Germans in the dugouts could not be coaxed out. Explosives thrown into their hiding places must have produced appalling consequences. The sturdy Canadians did not relish this kind of work, but there was no alternative. For an hour they searched the mine shafts and galleries around Givenchy and destroyed them. Some Germans in the depths were killed before they could explode certain mines they had prepared under British positions. About fifty prisoners of the Eleventh Bavarian Regiment were captured who had fought in Russia, at Verdun, and on the Somme.
Five hours later the same Canadian troops, unwearied by this strenuous experience, were carrying out another raid farther south, where they obtained good results.
On this date, February 14, 1917, the steady pressure maintained by the British forced the Germans to abandon advanced positions between Serre and the Somme and to fall back on their main fighting position.