From training in England, through the Normandy landings, the hedgerow fighting, the breakthrough and the race northeastward across France, through Belgium to the Albert Canal, Brooks had guided the division through two campaigns and scores of operations. During this period, seven units of his command were awarded the Presidential Distinguished Unit Citation. At Marchiennes, France near the Belgian border on September 2, 1944, he himself had personally participated in and directed an operation which annihilated a German convoy of 165 vehicles and earned him an oak leaf cluster to his Silver Star. The Army Distinguished Service Medal was awarded to Brooks for his leadership of the 2nd Armored Division.