Terrorism & Violent Extremism

Just Security provides expert legal and policy analysis of terrorism, counterterrorism, and domestic and international violent extremism.

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Destruction at Karbala airport in the Iraqi shrine city, one of the areas targeted by US military air strikes against a pro-Iranian group in Iraq following the deaths of two Americans and a Briton in a rocket attack the previous night on a US base in Taji. Some soldiers inspect the damage while others stand guard with guns. March 13, 2020

It’s Time Iraq Accepts Legal Responsibility for Its Iran-Backed Militias

Legal reform of the Popular Mobilization Forces (PMFs) would have a more durable effect on these hostile militias than a few US air strikes.
A fighter with the Syrian Democratic Forces (SDF) monitors on surveillance screens, crowded prison cells filled with people accused of being affiliated with the Islamic State (IS) group, at a prison in the northeastern Syrian city of Hasakeh on October 26, 2019.

Repatriating Foreign Fighters from Syria: International Law and Political Will (Part 2)

The detention conundrum: States rely on non-state groups for counterterrorism operations, but they are simultaneously reluctant to accept the return of terrorists captured and…
US Special Representative for Afghanistan Reconciliation Zalmay Khalilzad and Taliban co-founder Mullah Abdul Ghani Baradar shake hands after signing a peace agreement during a ceremony in the Qatari capital Doha on February 29, 2020.

The U.S.-Taliban Agreement: Not a Ceasefire, or a Peace Agreement, and Other International Law Issues

Beatrice Walton explains the continuing lack of clarity concerning the terms of the recent Afghan peace deal and its potential effects moving forward.
A member of the Syrian Democratic Forces (SDF) looks through a door window to a crowded cell where men suspected to be affiliated with the Islamic State (IS) group are jailed in northeast Syria in the city of Hasakeh on October 26, 2019.

Repatriating Foreign Fighters from Syria: International Law and Political Will (Part 1)

Does international law require States to repatriate their foreign fighters?
PBS NewsHour's Yamiche Alcindor asks President Donald Trump about decision to close National Security Council Directorate for Global Health Security and Biodefense, March 13, 2020.

Lessons Ignored: John Bolton’s Bogus Defense of “Streamlining” Away Our Bio-Readiness

Former director of USAID’s Office of US Foreign Disaster Assistance won't let John Bolton rewrite history. "What undermines public confidence ... is the administration’s own…
Defense Department General Counsel Paul C. Ney gives a speech at BYU Law School on March 4, 2020.

The Trump Administration’s Latest (Failed) Attempt to Justify the Soleimani Strike

Two months after killing Qassem Soleimani, the Trump administration still hasn’t gotten its story straight. On January 3rd, the day of the operation, and for the next 10 days,…
The dome of the U.S. Capitol Buidling and the US flag.

The Soleimani Strike and the Case for War Powers Reform

With passage of historic war powers legislation on Iran, a leading authority homes in on what deep reform of the war powers should look like.
US Special Representative for Afghanistan Reconciliation Zalmay Khalilzad and Taliban co-founder Mullah Abdul Ghani Baradar shake hands after signing a peace agreement during a ceremony in the Qatari capital Doha on February 29, 2020.

Peace in Afghanistan: Showmanship over Substance

It is clear why it is in the best interests of both the Taliban and the Trump administration to maintain the masquerade despite ongoing Taliban and Haqqani attacks targeting both…

Int’l Criminal Court’s Afghanistan Decision Expands Prosecutor’s Power: What to Expect Next

The Appeals Chamber of the International Criminal Court (ICC) authorized a formal investigation into alleged crimes committed during the war in Afghanistan on Thursday, overturning…
FBI Building in Miami, Florida.

About Those FBI Counterterrorism Assessments …

Will a recent inspector general report encourage the FBI to be more, not less, aggressive in the use of Type III assessments in counterterrorism cases without adequate constitutional…

A Model for Countering Foreign Disinformation and Interference in Elections

There’s a model the U.S. government applied in the counterterrorism context that provides a potential template for addressing the election interference threat over the long run.
A phone with the icon for Telegram, a messaging app.

Telegram’s Cryptocurrency Could Have a Terrorism Problem

A look at how the release of Telegram's cryptocurrency could offer terrorists and other bad actors new options to circumvent financial regulators and potentially undo years of…
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