Fourth Army and the XVIII Corps was moved from the Third Army to the Fifth Army, which was made responsible for the defence of Maubeuge. Joffre began to dismiss commanders in early August, beginning with the VII Corps commander Bonneau and by 6 September had removed two army, ten corps and commanders, by transferring them to Limoges (). The VII Corps in the south was reinforced by two divisions, a cavalry division and the First Group of Reserve Divisions. The corps was renamed the Army of Alsace, to relieve the First Army of concern about Alsace during the operations in Lorraine. Two corps were removed from the Second Army and became a strategic reserve. Joffre met Sir John French on 16 August and learned that the British could be ready by 24 August, Joffre also arranged for Territorial divisions to cover the area from Maubeuge to Dunkirk. The German siege of the Liège forts ended on 16 August and the 1st and 2nd armies with twelve corps and the 3rd Army with four corps began to advance behind cavalry screens. On 18 August, Joffre ordered the Fifth Army to prepare for a German offensive on both banks of the Meuse or to meet a small force on the north bank. The Fifth Army began to move towards Namur, in the angle of the Meuse and Sambre rivers on 19 August, which required a march of by some units. French plan On 5 August, Joffre ordered an offensive by the VII Corps, on the right flank of the First Army, to begin on 7 August towards Mulhouse. The capture of the 2nd Army order of battle on 7 August, convinced Joffre that the strength of the German forces on the flanks had left the centre weak and vulnerable to an offensive towards Neufchâteau and Arlon. On 8 August, Joffre issued General Instruction No. 1, containing his strategic intent, which was to destroy the German army rather than capture ground. The offensive into Alsace and that by the First and Second armies into Lorraine, would pin down German forces and attract reinforcements, as the main offensive further north drove in the German centre and outflanked the German forces in Belgium from the south. Joffre expected that the attack into the German centre would meet little resistance. The First and Second armies would advance south of the German fortified area from Metz–Thionville, with