An hour later, at 0100 hours, the opening bombardment of
Blücher-Yorck began, augmented with
poison gas and described as 'of a violence and accuracy that in the opinion of the most seasoned soldiers far outdid any other barrage they were under'. Sheltered as they were in dugouts deep underground, the Devons' casualties were light, although the gas caused some discomfort and inconvenience, and ammunition parties could not be sent out. At approximately 0345, the German infantry attack began using the recently developed
Stormtroop tactic of advancing rapidly, probing for weak spots and avoiding pockets of resistance. The units in the front-line trenches, which had already suffered severely from the artillery bombardment, were rapidly infiltrated and overrun. Soon the 8th Division's only cohesive unit of any size north of the river
Aisne was the 2nd Devonshires. At first light, around 0400 hours, the battalion emerged from the dugouts and took up its battle positions. Much of the trenchwork had been destroyed by the artillery bombardment, as had the field telephones, so that, when companies were sent to their battle positions, contact with their battalion headquarters was lost. Runners sent to attempt to re-establish contact were all too frequently killed by the continuing artillery fire. Despite this, several determined attacks by units of the German
50th Infantry Division were beaten off. Furthermore, the Devons were able to rake the road from La Ville-aux-Bois to Pontavert with fire, severely disrupting the flow of German reinforcements, supplies and ammunition, upon which the Germans were dependent for continued success. It soon became apparent to the Germans that Bois des Buttes had become a significant obstacle to their progress, so that it came under attack from both bounty
Mk.IVs and the
Imperial German Army Air Service. == The Last Stand of the 2nd Devons ==