The 15th Brigade fought in the Second Battle of Bullecourt in May 1917, and the Battle of Polygon Wood at the end of September. According to Charles Bean, this victory was For Elliott, the victory was marred by the death of his brother George, a captain in the Medical Corps attached to the 14th Brigade. He submitted a detailed report of the battle that was highly critical of the British 33rd Division on his right flank, and which Birdwood ordered suppressed. Elliott was mentioned in despatches.