n September 1918, during the final Allied offensive of the war – the Hundred Days Offensive – Currey was one of eight Australians awarded the Victoria Cross for their actions during the Battle of Mont Saint-Quentin.
On 1 September 1918 in the attack on Péronne, France, Currey, as a 22-year-old private in the 53rd Battalion, rushed forward under heavy machine-gun fire and captured single-handed a 77-mm field gun which had been holding up the advance, killing all the crew. Later, when the advance was checked by an enemy strong-point he crept round the flank and engaged the post with a Lewis gun, then rushed it, causing many casualties. Subsequently he volunteered to carry orders for withdrawal to an isolated company, bringing back valuable information, doing so under heavy fire and despite being gassed. The citation published in the London Gazette of 14 December 1918 concluded that his behaviour was a "striking example of coolness, determination and utter disregard of danger... and his gallant work contributed largely to the success of the operation."
The Australian official war historian, Charles Bean, described the final act of Currey's heroism thusly: "At 3 am when efforts to reach (a Lt Waite in an advanced position) having failed Private Currey volunteered to make his third attempt and going out far into the disputed front he stood up and called with all his lung power. "Waitsy! Get in." The Germans turned on him every weapon they had; he was gassed and his respirator was shot through. But Waite had heard him and returned."