The Allies were constantly engaged in trench raids for the main purpose of gaining information from prisoners as to the movements of the enemy. It was learned that the Germans were making intense preparations for a big operation. Fresh troops and many guns were constantly arriving on the front. Certain back areas were being cleared for action. Every day large bodies of troops were practicing attacks under the tutelage of experts.

The Allies meanwhile awaited the promised blow hopefully if not calmly. As far as could be ascertained they had a preponderance of men and guns, and the most elaborate preparations had been made during the winter months for the anticipated offensive.

The Story of the Great War, Volume VII (of VIII) — Part 206

But the much heralded "great push" did not start in February. The Germans were cautiously "feeling out" the ground, by means of trench raids and bombardments, and gathering information through their aerial observers regarding the disposition of the Allied forces, while the intense activity which prevailed within their own lines foreshadowed the nearness of a mighty attack, and what might prove to be the most sanguinary period of the war.

The Story of the Great War, Volume VII (of VIII) — Part 206

During the first days of March the Germans were engaged daily in raids all along the French and British fronts, but in every attempt they were repulsed with considerable losses. Determined efforts were made by the enemy to obtain possession of Fort La Pompelle to the southeast of Rheims, which would give them a dominating position from which to complete the destruction of that martyred city. Along a front of nearly ten miles extending from Loivre to Sillery the German infantry advanced from five different points. Some troops succeeded in reaching Alger Farm, a fortified position fronting on Fort La Pompelle, but none was able to enter the fort itself.

The Story of the Great War, Volume VII (of VIII) — Part 206

The French regiment holding the position in a spirited counterattack drove the Germans back, and regained every inch of ground, though bombarded by thousands of gas shells which filled the air with poisonous fumes. It was during this bombardment that a number of French prisoners escaped their captors and sought refuge in a shell crater where they discovered a large supply of hand grenades. With these they were able to hold off the enemy who tried to capture them and after killing a number succeeded in regaining their own lines.