The United Nations is pressing the United States to clarify when it will pay billions in unpaid dues. UN spokesperson Stephane Dujarric said Monday that although US Ambassador Mike Waltz promised payments would start soon, no specific dates or amounts have been given. "We’re waiting to see exactly when payments will be made and in what amounts," Dujarric said. US unpaid fees make up about 95% of the UN's outstanding budget dues. President Donald Trump's administration has cut back US involvement in international organisations. UN chief Antonio Guterres warned that unpaid US membership dues risk "imminent financial collapse" of the UN. By February, the US owed the UN around $2.19 billion, plus $2.4 billion for peacekeeping and $43.6 million for UN tribunals. Last year, the US did not pay $827 million for the UN budget and has not paid $767 million for 2026. US and Israel often criticize the UN, claiming it opposes their national interests. UN human rights chief Volker Turk said his office is in "survival mode" due to funding cuts, especially after the 2025 funding stop by the Trump administration. Turk's office frequently reports on alleged Israeli rights abuses against Palestinians, which the US and Israel reject. Ambassador Waltz said a "significant" payment will come soon, calling it an "initial tranche of money". He mentioned this is in response to US concerns and some UN reforms. The Trump administration’s 2025 National Security Strategy emphasized that nation-states, not international organisations, are the "world’s fundamental political units." Historically, the US has been the biggest UN donor, but some conservatives see the UN as limiting US sovereignty and power.