text:  In March 1917 , the 2nd and 5th Divisions pursued the Germans back to the Hindenburg Line , capturing the town of <unk> . On 11 April , the 4th Division assaulted the Hindenburg Line in the disastrous First Battle of <unk> , losing over 3 @,@ 000 casualties and 1 @,@ 170 captured . On 15 April , the 1st and 2nd Divisions were counter @-@ attacked near <unk> and were forced to abandon the town , before <unk> it again . The 2nd Division then took part in the Second Battle of <unk> , beginning on 3 May , and succeeded in taking sections of the Hindenburg Line and holding them until relieved by the 1st Division . Finally , on 7 May the 5th Division relieved the 1st , remaining in the line until the battle ended in mid @-@ May . Combined these efforts cost 7 @,@ <unk> Australian casualties . 
  