On 10 December 1943 during the advance northward from San Leonardo, Lance-Sergeant Sorfleet was in charge of a minesweeping party. The road and the area on both sides of the road had been extensively mined by the enemy with the result that the supporting arms could neither move forward nor leave the road to take up positions for action. If the advance was to continue, the mines had to be cleared.
Although under heavy fire from artillery and mortars, Lance-Sergeant Sorfleet, with great courage and determination, led his party forward to clear the area and completed the task, although under machine gun fire in the later stages. The courage, powers of leadership and determination of this Non-Commissioned Officer enabled the supporting arms to get into position and materially assisted the advance.