Armed Conflict

Use of Force

× Clear Filters
822 Articles
The US Navy warship USS Sampson (DDG 102) docks at the Amador International Cruise Terminal in Panama City on September 02, 2025. Venezuelan President Nicolas Maduro said on September 1, 2025, that eight US military vessels with 1,200 missiles were targeting his country, which he declared to be in a state of "maximum readiness to defend" itself. (Photo by MARTIN BERNETTI/AFP via Getty Images)

Legal Issues Raised by a Lethal U.S. Military Attack in the Caribbean

The Trump administration’s extraordinary lethal attack on a purported drug smuggling vessel – and its vow that it is the start of a campaign – raise significant legal issues.
A collage of images featuring scenes from the Russia - Ukraine War.

Just Security’s Russia–Ukraine War Archive

A catalog of over 100 articles (many with Ukrainian translations) on the Russia Ukraine War -- law, diplomacy, policy options, and more.
Left Side: Rescuers from the Emergency Services of Ukraine extinguish a blaze in the aftermath of a Russian drone strike on a warehouse storing food products on August 9, 2025 in Sloviansk, Ukraine. (Photo by Pierre Crom/Getty Images) Right Side: An Israeli army infantry-fighting vehicle (IFV) leaves a cloud of dust as it moves at a position along Israel's southern border with the Gaza Strip on August 5, 2025. (Photo by JACK GUEZ/AFP via Getty Images)

From Ukraine to Gaza: IHL Compliance as a Tool for Preventing Moral Injury

Ukraine's voluntary IHL compliance report provides an opportunity to examine the concept of moral injury in armed conflict - Israel should follow Ukraine's lead.
The Just Security Podcast

The Just Security Podcast: Ukraine’s Resistance to Russia’s Invasion — The Other Mobilization

As millions of Ukrainians face the devastation of their communities, volunteers—especially women—have stepped up to support the nation’s survival. 
cloud of smoke erupting following Israeli bombardment on a building

“Lies, Damned Lies, and Statistics”: The Legality of Statistical Proportionality

Israel's practice of statistical proportionality should be considered to violate the legal duty to take feasible precautions in attacks.
U.S. President Donald Trump, joined by Republican lawmakers, holds a gavel after signing the "One, Big Beautiful Bill" Act into law during an Independence Day military family picnic on the South Lawn of the White House on July 04, 2025 in Washington, DC. (Photo by Eric Lee/Getty Images)

Congress Shrinking from the World: the Constitution’s Article I in the Shadow of Trump 2.0

Congress has revealed itself less as a coequal branch and more as an accomplice in the marginalization of its own constitutional role in foreign and national security policy.

Manifestly Illegal: Israeli International Law Scholars on the Stated Plan to “Concentrate” the Palestinian Population in South Gaza

Israeli international law scholars send urgent letter to Israel’s Minister of Defense, the IDF Chief of Staff, the Attorney General.

Our Duty to Explain Israel’s Operation to “Concentrate and Move Population” in Gaza is a Manifest War Crime

We wrote this essay to fulfill our human, conscientious, and civic duty, as Israelis – and as Zionists – who have expertise in areas related to the IDF’s order.
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.
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.
The Just Security Podcast

The Just Security Podcast: A Ukrainian MP Takes Stock of the NATO Summit and the Prospects for Peace

Ukrainian MP Oleksiy Goncharenko discusses the NATO Summit and the war with Washington Senior Editor Viola Gienger and guest host Lauren Van Metre.
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
1-12 of 822 items

DON'T MISS A THING. Stay up to date with Just Security curated newsletters: