NATO's surprising move after Ukraine attack stuns Europe and the shocking decision will completely change everything you ...

NATO promised to use members' soaring defense budgets for a fivefold increase in air defenses. But there are problems beyond ...

The NATO summit in The Hague reaffirmed the alliance’s commitment to Ukraine’s Euro-Atlantic future, and President Zelensky’s ...

Allies like Japan, South Korea, the Philippines and Australia have no choice but to try and meet the president’s conditions ...

Both the "deterrers" and "balancers" of Europe’s security debate have more to learn from each other than they think.

To satify Trump's demands, however, the NATO allies had to make concessions. Their military spending will have to reach 3.5% of their gross domestic product by 2035.

CHARLES KUPCHAN is Professor of International Affairs at Georgetown University and a Senior Fellow at the Council on Foreign Relations. His most recent book is Isolationism: A History of America’s ...

Trump's unpredictability causes great anxiety in Europe, particularly his questioning of the mutual defense promise at the ...

"A sustainable settlement is not possible without eliminating the root causes of the conflict," the senior Kremlin figure said.

President Donald Trump criticizes Spain for refusing NATO's 5% defense spending target, threatening trade consequences while allies agree to boost military expenditures.

The president is pressing foreign leaders on everything from military budgets to antitrust laws — all under the banner of ...

NATO leaders agreed on a massive hike in defense spending Wednesday after pressure from U.S. President Donald Trump, and expressed their “ironclad commitment” to come to each other’s aid if attacked.