President Donald Trump will return to the United Nations this week seeking greater international cooperation in confronting Iran, even as his administration moves to reshape the global institution hosting world leaders, U.S. Ambassador to the U.N. Mike Waltz told Fox News Digital in an exclusive interview ahead of the gathering.
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Waltz → return → gathering
US presses allies to enforce Iran sanctions ahead of the UN General Assembly
With the U.S.-Iran war entering its seventh month, Trump is expected to address the General Assembly on Tuesday and meet Gulf leaders whose countries have been directly affected by the conflict.
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countries → press → conflict
The gathering comes as Washington seeks to intensify economic pressure on Tehran, European allies confront Russia's ongoing war in Ukraine and the administration faces questions about whether its push to reduce the U.N.'s size and spending risks diminishing the organization's ability to respond to international crises.
Waltz outlined what Washington expects from its partners on Iran: full enforcement of sanctions against Tehran, with consequences for countries that fail to comply.
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that → come → countries
"They will reinforce that message, but importantly, it's all of these countries actually enforcing the sanctions and what they're going to hear is there will be consequences for friend and foe," Waltz said.
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Waltz → reinforce → friend
"The president is doing this for the future security of the world."
European and Asian allies have largely resisted Trump's requests for assistance in the Iran conflict, which began with U.S. and Israeli strikes in February, Reuters reported on on Sept. 18.
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Reuters → do → Sept.
The war has also disrupted energy markets, with Iran obstructing shipping through the Strait of Hormuz and its Houthi allies tightening their grip on a critical Red Sea shipping corridor.
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allies → disrupt → corridor
Waltz said the administration intends to make sanctions enforcement a central part of its diplomatic push during UNGA.
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enforcement → say → UNGA
"The Iranian economy continues to crater," Waltz said, pointing to the country's currency, inflation and the U.S. naval blockade.
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Waltz → continue → currency
"One way or another, the president has been crystal clear on our goals here that Iran cannot and will not have a nuclear weapon."
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Iran → have → weapon
His remarks follow a Sept. 17 U.N. Security Council vote in which Russia and China blocked an effort to continue independent monitoring of international sanctions on Iran.
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Russia → follow → Iran
Trump is also expected to meet Gulf leaders to discuss the conflict and regional security.
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Trump → expect → conflict
Waltz said that the administration wants to hear directly from its Gulf partners about their concerns, describing the collective meeting as an important diplomatic opportunity.
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administration → say → opportunity
A UN the Trump administration wants to change — but not abandon
The Iran conflict is unfolding against a broader debate over the future of the United Nations, an institution Trump has repeatedly criticized and his administration has sought to substantially reform.
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administration → want → Nations
On Sept. 16, the United States paid $725 million toward the U.N.'s regular budget and another $102 million for peacekeeping operations.
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States → pay → operations
The payments reduced Washington's outstanding debt and averted the immediate risk of losing its General Assembly voting rights in 2027.
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payments → reduce → 2027
However, the U.S. still owed approximately $1.312 billion to the organization's regular budget, according to the U.N.
Asked why American taxpayers should continue funding an organization the administration has repeatedly criticized for what it considers anti-American bias, Waltz pointed to efforts to reduce spending and redirect the institution toward its original mission.
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Waltz → owe → mission
"The president is clear about getting the U.N. back to basics and helping it realize its potential," Waltz told Fox News Digital.
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Waltz → get → Digital
He said the administration had secured more than $1 billion in budget reductions, with roughly 3,000 headquarters positions being cut and a reduction of approximately 25% in peacekeeping personnel.
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positions → say → personnel
"We have the U.N. on a diet," Waltz said.
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Waltz → have → diet
But Waltz also made clear that the administration does not intend to abandon the United Nations.
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intend → make → Nations
"There's got to be one place in the world where everyone can come together and put diplomacy first and can actually talk," he said.
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he → be → diplomacy
"We don't ever want to see a U.N. in Beijing or Moscow or Brussels.
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We → want → Beijing
"
"If we just walked away, you'd have 192 countries talking without us," Waltz added.
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Waltz → walk → us
Gaza offers one example of how the administration intends to use the U.N. while limiting direct American military involvement.
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administration → offer → involvement
Waltz pointed to the U.N.-endorsed Board of Peace and the planned International Stabilization Force, which is intended to support security and a postwar transition in Gaza.
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which → point → Gaza
The ambassador said he does not want American troops deployed there, arguing that international security operations should allow other countries to share the burden.
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countries → say → burden
The U.N. Security Council endorsed the Gaza peace plan and authorized the stabilization force in November 2025.
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Council → endorse → November
The State Department said Sept. 18 that Secretary of State Marco Rubio will be in New York from Sept. 20–23 to meet foreign counterparts, advance U.S. security and economic priorities and continue the administration's campaign for U.N. reform.
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Rubio → say → reform
Greenland agreement adds another dimension to allied diplomacy
Trump arrives in New York days after announcing a new security agreement with Denmark and Greenland aimed at expanding the American military presence in the Arctic while restricting adversaries from establishing bases or making sensitive investments on the island.
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Trump → add → island
The agreement falls short of Trump's earlier ambition to acquire Greenland, which remains an autonomous territory within the Kingdom of Denmark.
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which → fall → Denmark
Denmark and Greenland have stressed that the arrangement will not compromise the island's sovereignty or right to self-determination.
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arrangement → stress → determination
Additional details of the agreement have yet to be made public.
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details → have → agreement
Waltz told Fox News Digital that the deal reflects the Arctic's growing strategic importance as melting ice opens new shipping routes and increases access to energy and mineral resources.
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ice → tell → resources
"It's incredibly significant," Waltz said, pointing to Russia's Arctic military capabilities and the potential for new shipping routes to transform global trade.
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routes → say → trade
"It took some tough tweets, maybe some tough language," he said.
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he → take → tweets
"We now have an agreement with our ally Denmark."
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We → have → ally
The agreement comes as European governments confront overlapping security challenges involving Russia's war in Ukraine, Arctic defense and uncertainty over transatlantic security arrangements, while Washington seeks greater allied cooperation in its campaign against Iran.
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Washington → come → Iran
World leaders converge on New York
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leaders → converge → York
The U.N. expects 73 heads of state and 45 heads of government, along with 49 ministers, 11 vice presidents and one crown prince, to attend High-Level Week, U.N. spokesperson Stéphane Dujarric told reporters Friday.
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Dujarric → expect → reporters
Member states have submitted approximately 1,000 requests for bilateral meetings, while about 168 events are scheduled alongside the official proceedings.
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events → submit → proceedings
…and 4 more, not listed.
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