President-elect Donald Trump would add costs to taxpayers and national security by moving the Space Force from Colorado to ...

The U.S. decision to allow Ukraine to fire American weapons deeper into Russia has not increased the risk of a nuclear attack, which is unlikely, despite Russian President Vladimir Putin's ...

The recent strike on the Yuzhmash missile-producing plant in Ukraine demonstrated Russia’s "real military capability", a nuclear nonproliferation expert at the Middlebury Institute for International S ...

Russia on Wednesday warned the U.S. to stop what it said was a “spiral of escalation” over Ukraine as Washington moves to ...