The strikes, which Ukrainian officials have not formally commented on, appear to be part of a growing strategy to cripple ...

To be sure, some of Trump's problems come from a surplus of early successes and from the breadth of his ambitions. Through a flood of executive orders and actions, he has launched a transformation of ...

While nuclear crises between the “Big Three” can still be managed, preventing an arms race will be much more difficult.

NATO defense chiefs meet Thursday to set the agenda for this month's annual summit, with military spending expected to be one ...

The audacious attacks on Russian airfields highlight the power of unconventional, asymmetric warfare — and the threat to U.S.

It has become a test of endurance, demanding every last reserve of strength, costing hundreds of thousands of lives.

Russian President Vladimir Putin communicated to U.S. President Donald Trump his intention to respond to Ukrainian drone ...

Europe has the money and the artillery shells, but key U.S. capabilities like operational intelligence and air defense would ...

To upgrade its drones, Moscow has been adding SIM cards to transmit data back to Russia and updating anti-detection methods.

Assaults in Russia and Ukraine have shown major military powers that they are unprepared for evolving forms of warfare, and ...

Drones are “ubiquitous, because they are quite useful, and they're demonstrating that every day in Ukraine,” one analyst told ...

Ukraine’s president wants his Western backers to speed up deliveries of air defense systems to counter Russian missile ...