His army, originally intended to strike the Germans on their western flank, faced the brunt of the German march, stronger and further west than anticipated, through Belgium at the Battle of Charleroi. He was frustrated by the reluctance of his superior, General Joseph Joffre, who was initially preoccupied by French attacks into Lorraine and the Ardennes, to appreciate the danger of the German march through Belgium. Forced to retreat, at Joffre's insistence he made a successful counterattack at the Battle of Guise, but his apparent reluctance to counterattack led him to be relieved of command prior to the Battle of the Marne.