On 1 October 1918, along with the rest of the 1st Division, the 4th Battalion was engaged in the Battle of the Canal du Nord, advancing near Abancourt, north of Cambrai. However, the flanking British division had failed to progress its own front, and the Canadians were exposed to machine-gun fire. Merrifield, now a sergeant and leading a platoon, made a solo foray to deal with two machine-gun posts. Despite being wounded, he was successful in his endeavours and resumed the advance with his platoon. It was not until he was again wounded that he was treated for his wounds. He was awarded the Victoria Cross (VC) for his actions. The VC, instituted in 1856, was the highest award for valour that could be bestowed on a soldier of the British Empire. The citation for his VC read as follows: