10 U.S.C. § 405 — Use of Department of Defense funds for United States share of costs of United Nations peacekeeping activities: limitation

(a) Prohibition on Use of Funds. Money available to the Department of Defense cannot be used to make a financial contribution to the United Nations — whether given directly or sent through another U.S. department or agency. This ban covers two things: the cost of a United Nations peacekeeping activity, and any amount the United States owes the United Nations that has built up unpaid (an arrearage). (b) Application of Prohibition. This ban applies no matter how the contribution is offered. It covers voluntary contributions the United States chooses to make. It also covers contributions the United Nations requires as the United States' assessed share of a peacekeeping activity's costs.