Diplomacy

Just Security’s expert authors offer analysis of diplomacy and its role in addressing global challenges, from armed conflicts to international crises and more. Our coverage includes U.S. foreign policy, international organizations, and multilateral diplomacy related to critical global issues.

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3,082 Articles
Two young men roll a truck wheel away from the camera between two lines of trucks at the left and right of the image.

How the U.N. Can Show Renewed Leadership on Peace Efforts in 2026

To support peace efforts, the U.N. will need to show that it can adapt to the changing world order and not mourn the old order.
Denmark's Veterans hold Denmark and Greenland's flags.

Greenland Post-Davos: Enforcing 22 USC 1928f to Save NATO and Contain Trump’s Lawless Foreign Policy

In his threats against Greenland, President Trump has violated the U.N. Charter, the North Atlantic Treaty, and Section 1928f, prompting Congress to take swift action.
two fishermen in the foreground, the USSS Gravely in the background, on the open sea.

Can the U.S. Government Be Sued for Wrongful Death in a Caribbean Boat Strike?

In Burnley v. United States, relatives sue on behalf of two Trinidadian men killed in a boat strike, confronting U.S. sovereign immunity and the political question doctrine.
WHO Logo

Has the U.S. Actually Withdrawn from the World Health Organization?

The U.S. effort to withdraw from the WHO presents unique issues of international law—and offers a rare opportunity for an international organization to push back on U.S. exit.
The Marinera oil tanker is seen on January 14, 2026 in Hopeman, Scotland. The Marinera oil tanker, previously known as the Bella 1, has entered UK waters at the request of the US to be replenished with "essential supplies." The Russian-flagged tanker was seized by US forces on 7 January 2026, between Iceland and Scotland, for allegedly violating sanctions by transporting oil for Venezuela, Russia, and Iran. (Photo by Peter Summers/Getty Images)

The Law of Naval Warfare and the U.S. Capture of Neutral Merchant Vessels: The Case of the Marinera

In‑depth legal examination of the U.S. capture of the Russian‑flagged tanker Marinera and its implications under the law of naval warfare.
A protestor holds a sign outside the Ronald Reagan Building in Washington D.C. that reads “Wreck USAID = Hurt U.S. + Help U.S. Enemies”

“America Alone” Runs Counter to U.S. Public’s Preferences for Robust Global Engagement

The Trump administration's withdrawal from dozens of international structures contradicts polls showing Americans broadly support multilateralism, alliances, and human rights.
A towering justice gavel stands prominently at the center, illuminated by a dramatic blend of blue and purple lighting. Scattered across the scene are monochrome silhouettes of legal professionals (via Getty Images)

Responding to the Trump Administration’s Cuts to International Judicial Work

Foreign aid cuts have halted most international judicial training. What future paths remain for U.S. judges seeking global engagement?
U.S. President Donald Trump presents the “Board of Peace” onstage at the World Economic Forum (WEF) on January 22, 2026 in Davos, Switzerland. (Photo by Chip Somodevilla/Getty Images)

Expert Q&A on the Charter of the Board of Peace and the Role of Congress

Can the United States join the Board of Peace without action by Congress? Can it provide funds or carry out its operations without congressional approval?
A smartphone displays a post by U.S. President Donald Trump on the Truth Social platform showing a composite image featuring Trump alongside U.S. Secretary of State Marco Rubio and U.S. Vice President J.D. Vance, with the U.S. flag and a sign reading Greenland, U.S. Territory Est. 2026, while a map of Greenland is visible in the background, on January 20, 2026 (Photo illustration by Cheng Xin/Getty Images)

The Insurmountable Legal Obstacles to U.S. Acquisition of Greenland

Any acquisition of Greenland by the United States–whether by force or through coerced agreement–would directly violate fundamental principles of international law.
Screenshot of the Hypothetical Legal Review of Use of the U.S. Military in Greenland (Just Security)

Hypothetical Legal Review of Use of the U.S. Military in Greenland

This hypothetical legal review imagines what a senior judge advocate’s legal analysis would be if ordered to plan a U.S. military operation in Greenland without Denmark's consent.
Miners work along unstable slopes of a ridge

Getting Critical Minerals Certification and Due Diligence Right In the DRC-Rwanda Accord and Beyond (With a Lesson from a Punk Band?)

A concentration on decision-making, investment, and accountability will lead to a more impactful DRC-Rwanda minerals agreement and improve others as well.
Journalists work as Ukraine's President Volodymyr Zelensky is seen on screen as he speaks to press during the European Council meeting gathering the 27 EU leaders to discuss Ukraine, European defence, and more, in Brussels, on October 23, 2025. (Photo by NICOLAS TUCAT / AFP) (Photo by NICOLAS TUCAT/AFP via Getty Images)

The EU Discovers Emergency Powers: Russian Assets Edition

When is it justified for the EU to rely on emergency measures to protect Ukraine and counter Russia?
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