The German commanders were well aware that if the line was to be broken it must be soon, and all these operations were in the hope of finding a fatal flaw. Hence it was that the attacks which began and failed upon April 4 extended all along the northern line on April 5. Thus the New Zealand Division on the left of the points already mentioned was involved in the fighting, the right brigade, consisting of the New Zealand Rifle Brigade, being fiercely attacked by some 2000 storm troops who advanced with great hardihood, and at the second attempt recaptured the farm of La Signy. The German officers seem upon this occasion to have given an example to their men which has often been conspicuously lacking. "A tall Wurtemburger," says the New Zealand recorder, "ran towards our line with nine of his men. In one hand he carried a cane and over his arm a {212} light waterproof coat. He was a fine big fellow over six feet high.... Just at the critical moment some Lewis-gunners took a hand in the business, the officer was shot dead, and most of the others were killed or wounded." On the left of the New Zealanders the attack was extended to the road between Ayette and Bucquoy. Here a brigade of the Thirty-seventh Division in the south and of the Forty-second in the north were heavily attacked and Bucquoy was taken, but before the evening the defenders returned and most of the lost ground was regained. The right of the Thirty-seventh Division had advanced in the morning upon Rossignol Wood, that old bone of contention, and had in a long day's struggle got possession of most of it. Three machine-guns and 130 men were the spoils. [Sidenote: April 21, 22.] From this time onwards there were no very notable events for some weeks in the Somme line, save for some sharp fighting in the Aveluy Wood sector on April 21 and 22, in which the Seventeenth, Thirty-fifth, and Thirty-eighth Divisions were all involved. The enemy tried hard to improve his position and did succeed in gaining some ground. The attacks were costly to both sides but the results were futile. The British outposts, and particularly those of the Australians, maintained an aggressive attitude throughout, and it was more and more impressed upon the German mind that in spite of his considerable advance and large captures, it was an unbeaten army which lay before him. [Sidenote: April 24.]