Move underscores the Trump administration’s waning commitment to providing military aid to Kyiv.

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

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.

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 ...

Examining how Ukraine’s long-range drone strikes targeted Russia’s bomber fleet, revealing the evolving structure and limits ...

Key NATO members are upping their defense posture in response to threats from Russia. Experts say the Trump administration's ...

Western military planners have been carefully studying Ukraine’s successes since the war began. Destroying $7 billion worth ...

Those sympathetic to Ukraine want to believe that, with a combination of Western aid and Ukrainian ingenuity, David can get ...

Russia has performed poorly on the battlefield in Ukraine and will likely hit the 1 million casualty mark in the summer of ...