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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…
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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Smoke rises from a location allegedly targeted in Israel's wave of strikes on Tehran, Iran, on early morning of June 13, 2025. (Photo by SAN/Middle East Images/AFP via Getty Images)

Israeli Strikes Risk Driving Iran Toward Nuclear Weapons

An assessment of the implications of Israel's strikes on Iran this morning for nuclear diplomacy and regional stability.

Call Them What They Are: Time to Fix Cyber Threat Actor Naming

The Microsoft-CrowdStrike partnership on cyber threat actor naming conventions is welcome, but more comprehensive reform is needed to serve defenders and the public.
California National Guard members stand guard outside the Federal Building as protests continue in response to federal immigration operations in Los Angeles on June 10, 2025. (Photo by APU GOMES/AFP via Getty Images)

The Mounting Crisis of Militarizing Immigration Enforcement

When part-time soldiers police their neighbors, federal authority displaces state and local officials, and strains civil-military relations.
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The Just Security Podcast: A Conversation with Jen Easterly — Cybersecurity at a Crossroads

How do leaders steer through cyber crises and chart a path forward? Jen Easterly unpacks challenges, breakthroughs, and lessons from the front lines of U.S. cybersecurity.
National Guard soldiers and US Department of Homeland Security (DHS) Police officers clash with demonstrators outside the Metropolitan Detention Center, MDC, in downtown Los Angeles, California on June 8, 2025. (Photo by FREDERIC J. BROWN/AFP via Getty Images)

“The Insurrection Act” by Any Other Name: Unpacking Trump’s Memorandum Authorizing Domestic Deployment of the Military

"The Memorandum ... raises many of the same concerns as an Insurrection Act invocation would, and that could end up looking quite similar in practice."
A worker sorts recyclable plastic waste at a warehouse in Jalandhar on June 4, 2025, on the eve of World Environment Day. (Photo by SHAMMI MEHRA/AFP via Getty Images)

Getting to Yes on the Plastics Agreement: Time for More Plasticity?

A thorough survey of tools that can be used to bridge divides in negotiations on a treaty to end plastic pollution.
The Supreme Court building is shown with a blue sky behind it.

Relocating Nationwide Injunctions

Consolidating cases allows a clear, expedited path to Supreme Court review, helping quickly address matters involving executive orders.
Secretary of State Marco Rubio testifies before the House Committee on Appropriations | Subcommittee on National Security, Department of State, and Related Programs at the Rayburn House Office Building on May 21, 2025 in Washington, DC. Rubio testified on the proposed budget estimates for fiscal year 2026 for the Department of State. (Photo by John McDonnell/Getty Images)

How the Proposed State Department Reorganization Guts U.S. Human Rights Diplomacy

"Congress should urge Secretary Rubio to modify the proposed plan in ways that would sustain bipartisan U.S. efforts to advance democracy and human rights across the globe."
As family members and activists watch as people are loaded into transport vans after they were taken into custody at the offices of a homeland security contractor on June 04, 2025 in Chicago, Illinois. About a dozen immigrants were taken into custody. (Photo by Scott Olson/Getty Images)

Unequal Before the Law: How Trump’s Death Penalty Order Codifies Dangerous Speech

Tying the harshest punishment the state can impose to the identity of the accused is dangerous speech that can increase the risk of intergroup violence.
Ukrainian rescuers work to extinguish a fire in a trolleybus depot following a drone strike in Kharkiv on May 30, 2025, amid the Russian invasion of Ukraine.(Photo by SERGEY BOBOK/AFP via Getty Images)

Can Trump Seize a Win in Ukraine?

It’s in Trump’s hands to deliver the logic of force: to rally the West, to back Ukraine, squeeze Russia, and set the stage for a win for Ukraine, the free world, and the U.S.
Someone's hands flip through a wad of U.S. dollars in front of a desk covered with Syrian currency carrying former dictator Bashar al-Assad's face, and an array of financial equipment. Above the shelf are glass teller windows, one of them framing the face of what looks like a customer.

A Framework for Proactively — and Rapidly — Lifting Sanctions on Syria

A clear U.S. roadmap for sanctions relief will ensure Syria's swift, sustainable recovery to improve the prospects for political transition.
A person walks past the The United States Court of International Trade

What Just Happened: The Tariff Litigation Advances

A recent U.S. Court of International Trade ruling may distract more than it changes the course of U.S. President Trump's trade policy.
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