Nathan Sales, a career diplomat and former ambassador to the United Nations Institute for Disarmament Research, tendered his resignation effective immediately, effective Monday, just days after the Trump administration authorized airstrikes in Tehran. In a five-page letter addressed to President Donald Trump and obtained by this newspaper, Sales described the strikes as a "strategic miscalculation" that could trigger a cycle of retaliation and destabilize the Middle East for years.
"The use of force without a clear endgame risks embroiling the United States in another prolonged conflict," Sales wrote. "I cannot in good conscience remain in an administration that pursues such reckless escalation."
📋 By The Numbers
- 37 years — Sales’ combined diplomatic career spanning three presidential administrations
- $2.8 billion — Estimated annual cost of U.S. military operations in the Middle East since 2020
Sales, who also served as coordinator for counterterrorism under former Secretary of State Mike Pompeo, is the highest-ranking national security official to resign over Iran policy since the 2020 killing of Qasem Soleimani. His departure follows weeks of internal dissent among State Department and Pentagon officials, who have privately expressed concerns over the administration’s aggressive posture toward Tehran.
| Agency | Position on Iran Strikes |
|---|---|
| U.S. State Department | Mixed signals; some officials favor diplomacy |
| U.S. Central Command | Supports military action as deterrence |
| U.S. Treasury Department | Cautious due to sanctions-related risks |
In his resignation letter, Sales criticized the administration’s reliance on military strikes over diplomatic engagement, warning that such tactics could embolden adversaries like Russia and China to exploit perceived U.S. overreach. He also highlighted the lack of a coherent post-strike strategy, citing intelligence reports that Iran’s proxy forces in Iraq and Syria are preparing asymmetric responses.
Key Points
- ✅ Nathan Sales resigned Monday, citing opposition to Iran strikes
- ⚡ His resignation is the highest-profile protest of Trump’s Iran policy to date
- 💡 Sales warned strikes risk destabilizing the Middle East and empowering rivals
White House Press Secretary Karoline Leavitt declined to comment on Sales’ resignation but stated that the administration remains committed to a "strong and decisive" approach to countering Iranian aggression. Meanwhile, senior congressional leaders from both parties have begun reviewing the legal justification for the recent strikes, with Senate Majority Leader Chuck Schumer calling for a classified briefing on the administration’s war powers.
💡 Pro Tip
Diplomats and national security experts warn that unchecked military escalation in Iran could draw U.S. forces into prolonged ground conflicts—similar to past engagements in Iraq and Afghanistan. A measured approach combining targeted sanctions, cyber operations, and multilateral diplomacy may offer a more sustainable path.
The resignation comes as tensions between the U.S. and Iran reach their highest level in years, with Tehran threatening "severe consequences" for what it calls "terrorist attacks" on its soil. Regional analysts suggest that Sales’ exit could further isolate the administration at a time when international support for U.S. policy remains thin. European allies, including France and Germany, have urged restraint and called for renewed talks on Iran’s nuclear program.
- 📊 Recent strikes mark the most direct U.S. military action in Iran since 2020
- 🔍 Sales’ resignation signals deep internal fractures within the Trump administration
- ⚠️ Analysts warn of potential Iranian retaliation targeting U.S. embassies or military bases in the region
Sales, who has not yet secured a new position, told colleagues he plans to take a temporary leave from public service. His resignation adds to a growing list of departures among mid-level and senior officials in the State Department and intelligence community, many of whom have cited moral and strategic objections to the administration’s foreign policy direction.
- First — Sales served as acting under secretary since March 2024 following the departure of a permanent appointee
- Second — He was instrumental in drafting the 2023 Global Counterterrorism Strategy, which emphasized multilateral partnerships
- Third — His resignation follows a pattern of high-level exits over policy disputes, including from the National Security Council and Department of Defense