§ 147. Requisition is the name for the demand for the supply of all kinds of articles necessary for an army, such as provisions for men and horses, clothing, or means of transport. Requisition of certain services may also be made, but they will be treated below in § 170 together with occupation, requisitions in kind only being within the scope of this section. Now, what articles may be demanded by an army cannot once for all be laid down, as they depend upon the actual need of an army. According to article 52 of the Hague Regulations, requisitions may be made from municipalities as well as from inhabitants, but they may be made so far only as they are really necessary for the army. They may not be made by individual soldiers or officers, but only by the commander in the locality. All requisitions must be paid for in cash, and if this is impossible, they must be acknowledged by receipt, and the payment of the amount must be made as soon as possible. The principle that requisitions must be paid for by the enemy is thereby absolutely recognised, but, of course, commanders-in-chief may levy contributions--see below, § 148--in case they do not possess cash for the payment of requisitions. However this may be, by the rule that requisitions must always be paid for, it again becomes apparent and beyond all doubt that henceforth private enemy property is as a rule exempt from appropriation by an invading army. A special kind of requisition is the quartering[288] of soldiers in the houses of private inhabitants of enemy territory, by which each inhabitant is required to supply lodging and food for a certain number of soldiers, and sometimes also stabling and forage for horses. Although the Hague Regulations do not specially mention quartering, article 52 is nevertheless to be applied to it, since quartering is nothing else than a special kind of requisition. If cash cannot be paid at once for quartering, every inhabitant concerned must get a receipt for it, stating the number of soldiers quartered and the number of days they were catered for, and the payment of the amount must be made as soon as possible. [Footnote 288: See above, § 143.] But it must be specially observed, that neither in the case of ordinary requisitions nor in the case of quartering of troops is a commander compelled to pay the prices asked by the inhabitants concerned. On the contrary, he may fix the prices himself, although it is expected that the prices paid shall be fair. [Sidenote: Contributions.]