Trump administration second term

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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.
CARIBBEAN SEA - SEPTEMBER 22: In this handout provided by the U.S. Navy, An AH-1Z Cobra, assigned to Marine Medium Tiltrotor Squadron (VMM) 263 (Reinforced), fires an air-to-ground missile (AGM) 114N during a live-fire exercise on September 22, 2025 in the Caribbean sea.

Using an Unmarked Aircraft to Attack an Alleged Drug Boat: Is it Perfidy?

Did the Sept. 2 strike on suspected drug traffickers using an unmarked aircraft violate the prohibition on perfidy, or other LOAC rules, had there been an armed conflict?
The Martin Luther King Jr Memorial

On Martin Luther King Jr. Day, Let Not Arrogance Be Our Doom

With humility and our collective morals and values, we must extinguish the flames of hubris in US foreign and domestic policy, or "our arrogance will be our doom."
Iranians gather while blocking a street during a protest in Tehran, Iran on January 9, 2026. The nationwide protests started in Tehran's Grand Bazaar against the failing economic policies in late December, which spread to universities and other cities, and included economic slogans, to political and anti-government ones. (Photo by MAHSA / Middle East Images / AFP via Getty Images)

Military Force Will Not Help the People of Iran

This is an Iranian uprising, and it is up to the people of Iran to decide their own future.
A person enjoys an afternoon walk near the sea on January 15, 2026 in Nuuk, Greenland. (Photo by Alessandro RAMPAZZO / AFP via Getty Images)

How Congress Can Preserve NATO and Greenland: Using 22 USC 1928f to Protect the Peace

Trump’s threats to invade Greenland risk destroying NATO itself, but a little-known statute, 22 U.S.C. 1928f, could prevent him from doing just that.
Visualization of a global network

Key Trends that Will Shape Tech Policy in 2026

From AI federalism and autonomous cyber operations to intensifying U.S.-China competition, we asked leading experts to identify key trends in the year ahead.
View of smokestacks

Legal and Practical Implications of the U.S. Withdrawal from the U.N. Framework Convention on Climate Change

The U.S. withdrawal from the UNFCCC is a further blow to climate cooperation and a demonstration of U.S. foreign policy volatility.
The image shows multiple buildings, most of them non-residential, in white and red around a snowy hillside, with what appear to be cell phone and perhaps other types of steel towers and a radar atop the hill in the background.

Trump Is Right About Greenland — Wrong About How to Secure It

The challenge is not recognition of Greenland’s importance; it is ensuring that security enhancements are strategic, sustainable, and allied-driven.
NATO Leaders join King Willem-Alexander and Queen Máxima of the Netherlands for a family photo as they participate in the 2025 NATO summit on June 24, 2025 in The Hague, Netherlands. (Photo by Haiyun Jiang-Pool/Getty Images)

The North Atlantic Treaty and a U.S. Attack on Denmark

Would NATO have to defend Denmark if the United States attempted to seize Greenland? Article 5 suggests other allies are obligated to come to Denmark's defense if requested.
Silhouette of President Donald Trump outside the White House in the evening.

The United States in Retreat

Whatever the modest cost-savings that are generated by this U.S. withdrawal from the multilateral system, the loss of long-term influence will be far greater.
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