The 1st Division's artillery was in action from the start of the Third Battle of Ypres on 31 July 1917 but the infantry were not called upon until the second phase of the battle commenced on 20 September with the Battle of Menin Road.
Attacking across 1,000-metre (1,100 yd) front, along with ten other divisions, including the Australian 2nd Division on their left, the 1st Division captured around 1,500 metres (1,600 yd) of ground, securing Glencorse Wood and gaining a foothold in Polygon Wood.
The Australian divisions suffered 5,000 casualties from the battle – the 1st Division lost 2,754 men – mainly due to retaliatory shelling from heavy artillery after the advance had completed.

The 1st Division was relieved by the Australian 5th Division before the next assault, the Battle of Polygon Wood (26 September), but in turn took up the advance for the following Battle of Broodseinde (4 October), the third and final of the successful bite-and-hold attacks conceived by General Herbert Plumer of the British Second Army.
This battle marked the peak of British success during 3rd Ypres and apart from minor roles on the southern flank of the Canadian Corps during the Battle of Poelcappelle, First Battle of Passchendaele and the Second Battle of Passchendaele, it was the end of the 1st Division's involvement.
The division's casualties were 2,448 men killed or wounded.
The 1st Division's artillery was in action from the start of the Third Battle of Ypres on 31 July 1917 but the infantry were not called upon until the second phase of the battle commenced on 20 September with the Battle of Menin Road. Attacking across 1,000-metre (1,100 yd) front, along with ten other divisions, including the Australian 2nd Division on their left, the 1st Division captured around 1,500 metres (1,600 yd) of ground, securing Glencorse Wood and gaining a foothold in Polygon Wood. The Australian divisions suffered 5,000 casualties from the battle – the 1st Division lost 2,754 men – mainly due to retaliatory shelling from heavy artillery after the advance had completed.
The 1st Division was relieved by the Australian 5th Division before the next assault, the Battle of Polygon Wood (26 September), but in turn took up the advance for the following Battle of Broodseinde (4 October), the third and final of the successful bite-and-hold attacks conceived by General Herbert Plumer of the British Second Army. This battle marked the peak of British success during 3rd Ypres and apart from minor roles on the southern flank of the Canadian Corps during the Battle of Poelcappelle, First Battle of Passchendaele and the Second Battle of Passchendaele, it was the end of the 1st Division's involvement. The division's casualties were 2,448 men killed or wounded.
1st Division (Australia)