The nuclear deterrent has been Russia's standby argument for years, cyclically invoked during times of heightened ...

U.S. Defense Secretary Lloyd Austin said Wednesday that the Biden administration will allow Ukraine to use American-supplied ...

The U.S. embassy in Ukraine says Russia could launch a "significant air attack" on Kyiv after U.S.-made missiles were fired ...

The warning arrived amid fears that the war could escalate, a day after Ukraine's military first launched U.S.-made ...

What are Russia's mobile nuclear bunkers as mass production begins? - Russian officials say the bunkers are ‘an important ...

The threat to the Ukrainian capital follows news Tuesday that Ukraine carried out its first strike on Russian territory with ...

The Ukrainian government has accused Russia of circulating false information about a major attack on Kyiv and other towns ...

The U.S. Embassy in Kyiv sounded the alarm on a “potential significant air attack” Wednesday, announcing that it will close.

The warning arrived amid fears that the war could escalate, a day after Ukraine's military first launched U.S.-made ...

LONDON -- The U.S. Embassy in Kyiv temporarily closed its doors on Wednesday out of "an abundance of caution," as it warned ...

The U.S. Embassy recommends U.S. citizens be prepared to immediately shelter in the event an air alert is announced.