On 3 May the Second Battle of Bullecourt commenced. Initially the 1st Division in reserve but it was drawn into the fighting on the second day when the 1st Brigade was detached to support the 2nd Division's attack. The Australians seized a foothold in the Hindenburg Line which over the following days was slowly expanded. By 6 May, they had captured over of the German trenchline, and the 3rd Brigade had also been committed. The German attempts to drive the British from their gains finally ceased on 17 May and the 1st Division was withdrawn for an extended rest, having suffered 2,341 casualties.