 In early June , plans were made for the Australian 2nd Division to attack around Morlancourt in preparation for a more significant attack at Hamel . On 10 June , the battalion advanced on the right of the 7th Brigade 's line , capturing the German front line trenches around Morlancourt and wiping out a whole battalion , taking 325 prisoners for the loss of 400 men . On 4 July the battalion undertook a supporting role in the successful Australian attack at Hamel , following up the initial success with a further , albeit small , advance on 8 July . After the German offensive petered out , the 27th Battalion undertook peaceful penetration operations against the German line as the Allies began to prepare to launch their own offensive . 
