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 forward was made on our side and dealt with as above. Thus the Battalion worked through the emptied German trenches and dug-outs, and on the 20th March held a line from Le Mesnil-en-Arrouaise to Manancourt on the Tortille River. The German retreat was as orderly as an ebb-tide. In the north, Bapaume had been taken on the 17th March by the First and Second Australian Division, and Péronne was occupied on the 18th by the Forty-eighth Division. Beyond Bapaume our troops entered the third and last—Beugny-Ytres—line of German trench and wire-work that lay between them and the Hindenburg defences four or five miles behind it across open country. From Péronne southward to close upon Germaine, where we were in touch with the French, our advance-parties had crossed the Somme and spread themselves, as far as the state of the ground allowed, in—it could hardly be called pursuit so much as a heavy-footed following-up of the enemy, and making our own roads and tracks as we moved. We found everything usable thoughtfully destroyed, and had to reconstruct it from the beginnings, ere any further pressure could be exercised.

The German front before Arras was unaffected by their withdrawal, and here preparations of every conceivable sort were being piled up against the approaching battle of the Ancre where from Croiselles to Vimy Ridge our Third and First Armies broke through on a front of fifteen miles on April 9, and after a week's desperate fighting, hampered as usual by the weather, carried that front four miles farther eastward, captured 13,000 prisoners and 200 guns; and, through the next month, fought their road up and into the northern end of the Hindenburg Line near Bullecourt whose name belongs to Australia.

On the 23rd of March the Battalion was taken out of its unmolested German trenches and marched to Combles, where it was used in road-making between Frégicourt, Bullet Cross-roads and Sailly-Saillisel, till the 5th of April. There was just one day in that stretch without rain, hail or snow, and when they were