Iran

Highlights:

ARLINGTON, VIRGINIA - JUNE 26: Chairman of the Joint Chiefs of Staff Air Force Gen. Dan Caine turns to watch a video of a bombing test of the GBU-57A/B Massive Ordnance Penetrator (MOP) used in the attack on the Iranian Fordow Fuel Enrichment Plant during a news conference with U.S. Defense Secretary Pete Hegseth at the Pentagon on June 26, 2025 in Arlington, Virginia. The Department of Defense top officials gave an update after three Iranian nuclear facilities were struck by the U.S. military last weekend and Iran countered by launching missiles at Al Udeid Air Base in Doha, Qatar. (Photo by Andrew Harnik/Getty Images)

The U.S. Attack on Iran Was Unconstitutional

Trump’s strike on Iran violated constitutional limits on the president's unilateral power to take the nation to war—an authority the Framers reserved for Congress.
U.S. Defense Secretary Pete Hegseth (L) and Chairman of the Joint Chiefs of Staff Air Force Gen. Dan Caine (R) turn to watch a video of a bombing test

What Counts as a Win?: Battle Damage Assessments and Public Messaging

The White House's future BDA briefings on the Iran strikes will likely project certainty where analysis still urges caution.
The Just Security Podcast

The Just Security Podcast: Is There a Diplomatic Path for Iran’s Nuclear Program? An Interview with Richard Nephew

Just Security’s Tess Bridgeman is joined by Richard Nephew to discuss where things stand and what a path forward for Iran's nuclear program might look like.
U.S. Ambassador to the United Nations Dorothy Camille Shea speaks during a Security Council Meeting on the Israel-Iran conflict at United Nations headquarters on June 24, 2025 in New York. (Photo by ANGELA WEISS/AFP via Getty Images)

Assessing the U.S. Article 51 Letter for the Attack on Iran: Legal Lipstick on the Use of Force Pig

Former State Department attorney analyzes U.S. letter to UN Security Council that presented legal arguments for U.S. strike on Iran's nuclear facilities.
Collage of the Israel-Iran conflict

Collection: Iran-Israel/United States Conflict

Experts analyze critical dimensions of Israel’s strikes relevant responses, covering nuclear diplomacy; strategic, security, and regional implications; and international law.
U.S. Defense Secretary Pete Hegseth and Chairman of the Joint Chiefs of Staff Gen. Dan Caine

Intelligence Implications of the Shifting Iran Strike Narrative

How the growing politicization of the U.S. intelligence community undermines the integrity of decision-making on Iran and national security more broadly.
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33 Articles
An Iranian flag is draped from a building damaged during a recent attack by Israel in the Gisha neighborhood of Tehran, Iran, on June 25, 2025. (Photo by Majid Saeedi/Getty Images)

Why War? Why Now? Assessing Iranian Intentions and Capabilities

Why did Israel, and then the United States, decide to attack Iran now, even as U.S.-Iranian negotiations sputtered along?
People walk by a photo of commanders killed by Israel

From War to Control: How the Recent Iran-Israel Conflict Risks Deepening the Islamic Republic’s Repression

The ceasefire may stop the bombs, but it will not reverse the repression that has long defined Islamic Republic’s internal trajectory.
The U.S. Capitol building is seen at sunset on March 1, 2022 in Washington, DC. (Photo by Samuel Corum/Getty Images)

The Trump Administration’s Flawed War Powers Report on Iran and the Need for a Congressional Rebuttal

The White House’s legal justifications for attacking Iran are unconvincing and raise concerns about unauthorized use of force. Congress should push back.
U.S. Defense Secretary Pete Hegseth (L), accompanied by Chairman of the Joint Chiefs of Staff Air Force Gen. Dan Caine (R), speaks during a news conference at the Pentagon on June 22, 2025 in Arlington, Virginia. U.S. President Donald Trump gave an address to the nation last night after three Iranian nuclear facilities were struck by the U.S. military. (Photo by Andrew Harnik/Getty Images)

President Trump’s Decision to Bomb Iran: From Bad to Worse

Whether newly announced ceasefire actually leads to end hostilities will not change the new reality: a comprehensive agreement is less likely now than before the bombing
Chairman of the Joint Chiefs of Staff Air Force Gen. Dan Caine discusses the mission details of a strike on Iran during a news conference at the Pentagon on June 22, 2025 in Arlington, Virginia. U.S. President Donald Trump gave an address to the nation last night after three Iranian nuclear facilities were struck by the U.S. military. In the image he is showing the media a graphic that describes the timeline of the operation. (Photo by Andrew Harnik/Getty Images)

The Day After U.S. Strikes on Iran’s Nuclear Program: A Policy and Legal Assessment

An expert policy and legal assessment of the U.S. strikes on Iran's nuclear facilities and what comes next.
Members of the UN Security Council listen as Ambassador Danny Danon, Permanent Representative of Israel to the UN, speaks during an emergency meeting at the United Nations Headquarters on June 13, 2025 in New York City (Michael M. Santiago/Getty Images)

Indefensible: Israel’s Unlawful Attack on Iran

Part of our ongoing series on the Israel-Iran war.
Flags of USA and Iran

Top Experts’ Backgrounder: Military Action Against Iran and US Domestic Law

Experts who advised a president on use of force answer a full range of basic questions on the conditions under which action against Iran would be lawful, and what options Congress…
Posters are displayed on the ground during a rally in support of the Iranian people and the Women Life Freedom movement

Open-Source Information Provides Powerful Evidence of Gender Crimes in Iran and Beyond

Digital open source data can be ethically deployed to strengthen investigations and prosecutions on gender crimes in Iran and elsewhere.
plume of heavy smoke and fire rise from an oil refinery in southern Tehran

Israel and Iran: A War with No Off-Ramp

The constellation of forces in Israel, the United States, and beyond complicates efforts to find an off-ramp to the war.
Members of the UN Security Council hold an emergency meeting to discuss Israeli strikes on Iran. UN headquarters, June 13, 2025 (UN Photo/Loey Felipe)

A New War or a New Stage in an Ongoing War – Observations on June 13 Israeli Attack against Iran

"Another legal framework – the ongoing armed conflict framework – is more factually and legally viable than the anticipatory or preventive self-defense frameworks."
Iranian protesters march in Tehran's Revolution Square

The Strategic Stakes after Israel’s Opening Strikes on Iran

Strategic implications of Israel’s strikes on Iran and key questions policymakers should ask to navigate what comes next.
People and first-responders gather outside a building that was hit by an Israeli strike in Tehran on June 13, 2025. Israel hit about 100 targets in Iran on June 13, including nuclear facilities and military command centres and killing senior figures including the armed forces chief and top nuclear scientists. (Photo by MEGHDAD MADADI/TASNIM NEWS/AFP via Getty Images)

The Israeli Strike on Iran the U.S. Saw Coming, but Couldn’t Stop

The Israel-Iran crisis will be a key test for how the Trump administration handles national security crises and its ability to respond.
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