The leading tank was level with the foremost anti-tank gun when the gun sergeant (Thornton) gave a notable exhibition of courage and coolness. Turning his back on the other tanks, he fired high-explosive shells into the first three as they went down the road. When the other tanks entered the battalion perimeter they came under fire of the rear gun also. All were disabled. Although he was wounded in the engagement, Thornton prepared his gun for further action, and soon three more tanks approached the position.