U.S. officials assess that Ukrainians are still contesting the strategic city of Mariupol in southeastern Ukraine.

Russian forces have surrounded the city on the Sea of Azov, but Ukrainian military personnel are still fighting the invaders, Pentagon Press Secretary John F. Kirby said.

Russi…

PENTAGON — Defense Intelligence Agency officials are warning of “dramatic” increases in the pace and scope of space operations by competitors, with China and Russia growing their in-orbit space assets by 70% since 2019.

“Russia and China, our primary strategic competitors, are taking steps to u…

WASHINGTON — Western weaponry pouring into Ukraine helped blunt Russia’s initial offensive and seems certain to play a central role in the approaching, potentially decisive, battle for Ukraine’s contested Donbas region. Yet the Russian military is making little headway halting what has become a hi…

The Russians are now concentrating their combat activity, resupply and reinforcement mostly in the Donbas area of eastern Ukraine, a senior Defense Department official said at a press briefing today.

That’s a change from the first part of their invasion, when Russian forces were trying to advance…