The United Nations sounded the alarm over the U.S. Fiscal Year 2018 budget proposed by the Trump Administration on Wednesday, declaring that if approved, the budget would render key United Nations operations ‘impossible’.

The budget proposal, part of a sweeping plan to balance the budget within 10 years, has ‘targeted reductions’ across the federal government, combined with measures to ensure 3 percent economic growth to eliminate the federal deficit. Part of those targeted reductions includes about a third of U.S. diplomacy and aid budgets, and about $1 billion from U.N. peacekeeping, according to Reuters.

“The figures presented would simply make it impossible for the U.N. to continue all of its essential work advancing peace, development, human rights and humanitarian assistance,” said Stephane Dujarric, spokesman for Secretary-General Antonio Guterres.

The United States is the largest contributor to the United Nations, paying 22 percent of the overall $5.4 billion budget for the international organization, and 28.5 percent of its $7.9 billion peacekeeping allotment.