The military situation had been considered at an earlier date (October 22nd), with the following conclusions: Full authority over the Allied army was given to the Commander-in-chief, who was enjoined to consult, as far as he could, the usages which prevailed in each contingent. The troops of each nationality were to be quartered as much as possible together, and on the lines of communications leading to their respective countries; they were to be under the immediate command of their own Generals, and everything relating to the discipline or to the interior economy of the various corps was to be dealt with by their own Officers. General Officers commanding contingents were formally placed under the supreme command of the Duke of Wellington; they were ordered to send their reports to him, and to obey him in all the dispositions which he might deem it his duty to make. Lastly, the French Government were invited to arrange with him, without delay, all matters affecting the occupation and the maintenance of the troops, as well as the “execution of particular conventions to regulate both these objects.”[80] ----- Footnote 80: _Ibid._, xi. 208. ----- Attached to the Treaty of the 20th of November there was a Convention, which was “as valid as if inserted word for word” in the Treaty, and, by Article No. 4,— (1) The Allied troops were to occupy the Departments of Pas de Calais, Nord, Ardennes, Meuse, Moselle, Lower and Upper Rhine, their line of demarcation being the frontiers of these Departments respectively. (2) A neutral zone was established between the above-mentioned strip of French territory in foreign occupation, and the remainder of the kingdom, in which neither the French nor the Allies were to maintain any military force, except for some special reason, and then only by mutual agreement. This zone was bounded on the south and west, by the river Somme to Ham, thence in nearly a straight line to Chalons-sur-Marne, whence it continued to a point between Joinville and Chaumont; from that place it took an easterly direction to Blamont, and then ran south to the Swiss frontier near St. Hypolite. (3) The French were to have power to garrison certain places within the territory to be occupied by the Allies; but the forces to be quartered there were not to exceed the number which was laid down, and only such war _matériel_ and stores as properly belonged to these places were to be kept there, the remainder to be removed into the kingdom west of the neutral zone. Altogether 22,000 men were allowed to garrison these places, the largest number being in the following fortresses, viz. Calais, where the garrison was not to exceed 1000 men; St. Omer, 1500; Arras, 1000; Lille, 3000; Dunkerque, 1000; Douai and Fort Scarpe, 1000; Metz, 3000; Strasburg, 3000; Schelstadt, 1000; Neu Brisach and Fort Mortier, 1000; and Belfort, 1000 men.[81] ----- Footnote 81: _Supplementary Despatches, etc._, xi. 192. -----