NATO

No one should dismiss lightly an agreement that has helped keep the United States and its allies safe for a generation.

International relations scholars evaluate two years of U.S. foreign policy.

Russia’s provocations in the Kerch Strait aren’t just a challenge to Ukraine. Like Beijing in the South China Sea, Moscow is seeking to undermine international maritime law.

Departures come amid speculation that Defense Secretary Mattis is on his way out.

Sources say the hawkish national security advisor is behind rumors that the defense secretary plans to resign.

The question of a permanent U.S. military presence in Poland is complicated. The White House shouldn’t treat it as a vanity project.

Washington should hand over U.S. military and political roles to other countries, including China.

The British Labour leader misses no opportunity to condemn the West, but he’s full of praise for violent revolutionaries.

Moscow wants this weekend’s referendum to fail, but Macedonians should vote to change their country’s name and join Europe once and for all.

Voters in the country’s upcoming name-change referendum should not allow nationalist opposition or foreign interference to stand in their way.

Ill-advised land swaps and population transfers won’t bring peace. They’re more likely to revive the bloodshed that plagued the Balkans during the 1990s.

A referendum could decide whether the country will change its name to gain entrance. But those prizes have lost their shine.

Far from a sultan, the Turkish president is hemmed in by the nationalists who back him—and they don’t want him to get too close to Russia.

Toomas Hendrik Ilves, Estonia’s former president, on what to make of U.S. foreign policy toward Russia.

The world needs new institutions for a new era—and nostalgia for a past that never existed won't help.

Trump doesn’t think the country is worth defending. Putin has already tried to destabilize it once—the West can’t let it happen again.

An attack on one isn't really an attack on all and four other misunderstood facts about the Western defense alliance.

America's allies and adversaries are adapting to Donald Trump in ways that can't easily be reversed.

Poland’s former defense and foreign minister explains how Trump left Eastern Europe in the lurch.

The president’s disgraceful remarks could have disturbing results.