An airman found dead at F. E. Warren Air Force Base in Wyoming was suspected in the on-duty shooting death of another airman on the base in July.

A new thriller from director Kathryn Bigelow raises key questions about presidential authority, global security and nuclear ...

The National Nuclear Security Administration urgently asked the White House for funds to prevent the agency from having to furlough its staff, sources told CNN.

Facing President Trump’s call for a quick ceasefire and bruising, new U.S. sanctions on Russia’s oil industry, Putin is again ...

The test came as the U.S. prepared sanctions on Russia’s oil and gas sectors and European allies pledged more military aid to Ukraine.

U.S. President Donald Trump shrugged off Russia's test of its nuclear-capable Burevestnik missile, which the Kremlin said had ...

A Kremlin official says Russia’s test of a nuclear-powered missile that it claims can’t be stopped by air defenses reflects ...

Russia’s claimed successful test of a new nuclear capable cruise missile last week has drawn international concern and ...

President Donald Trump on Monday took aim at Russia’s announcement that it has tested a nuclear-powered missile that can go ...