MacArthur was promoted to brigadier general on 26 June. In late June, the 42nd Division was shifted to Châlons-en-Champagne to oppose the impending German Champagne-Marne Offensive. "Général d'Armée" Henri Gouraud of the French Fourth Army elected to meet the attack with a defense in depth, holding the front line area as thinly as possible and meeting the German attack on his second line of defense. His plan succeeded, and MacArthur was awarded a second Silver Star. The 42nd Division participated in the subsequent Allied counter-offensive, and MacArthur was awarded a third Silver Star on 29 July. Two days later, Menoher relieved Brigadier General Robert A. Brown of the 84th Infantry Brigade of his command, and replaced him with MacArthur. Hearing reports that the enemy had withdrawn, MacArthur went forward on 2 August to see for himself. He later wrote: