During the night between March 5 and 6, 1916, the Germans attacked two of the salients of the Avocourt-Bethincourt front with a large body of troops. On the French right they failed entirely, and suffered heavy losses. In the center, after many costly failures, they gained a foothold in Haucourt Wood. On the other hand, the French delivered a strong counterattack from the Avocourt Redoubt and succeeded in reoccupying a large portion of the so-called "Square Wood" and in capturing half a hundred prisoners. During the night of March, 6, 1916, new German attacks were launched along the Bethincourt-Chattancourt road. Part of the French first line was occupied, but was later lost. On the 7th the Germans attacked on a front of over a mile. The assailants lacked neither dash nor daring, and were strong in numbers, but they were shattered against the wall of French defense and driven back with slaughter to their own line. Attempts on the French positions south and east of Haucourt during the night of the 7th failed, except in the south, where the Germans occupied two small works. As a result of the fighting between March 30 and April 8, 1916, the Germans had possession of the French advanced line on Forges Brook and were in a position to strike at the most formidable line of French defense, the Avocourt-Hill 304-Mort Homme-Cumieres front. The French General Staff during this gigantic struggle was constantly guided by the following rule: Make the Germans pay dearly for each of their advances. When it was believed that in order to defend a certain point too many sacrifices would have to be made, they evacuated that point. As soon as the Germans took hold of the point, however, they were the target of a terrific fire from all of the French guns, which were put to work at once. This was what General Petain, commanding the Verdun army, called "the crushing fire." [Illustration: Verdun Northwest District in Detail.]