The Trump White House press secretary's clueless take on France and the Statue of Liberty sparked an instant fact check.

Paris and London can provide the assurances that stop a continental race for nuclear weapons, but it won't be easy.

At the heart of NATO, the world’s longest-standing security alliance, is the notion that an attack on one is an attack on all ...

The thousands of documents posted online this week disappointed assassination buffs. But historians are finding many newly ...

Donald Trump has studied the playbook of his favorite European leader. All Americans should, to see what happens when a ...

History offers a range of precedents for what an agreement with Russia could look like—and how bad the consequences might be.

On March 17, 1776, the Continental Army under Gen. George Washington forced British troops to evacuate Boston.

Nuclear armament of the U.S. and the USSR in the 1940s; establishment of NATO and the Warsaw Pact; the Space Race; the Cuban Missile Crisis; glasnost and perestroika in the USSR; the fall of the ...

In the 80 years since the U.S. attacks on Japan, no other country has used a nuclear weapon in war. That remarkable record could soon be broken and all progress lost.

Everyone should understand that if the liberal order falls, the nonproliferation regime would fall with it. And the powers ...