Four people were killed and 25 others injured in Kyiv after Russia launched a mass attack across Ukraine overnight on Jan.

A Russian cruise missile whose secret development led President Trump to abandon a nuclear arms control pact with Moscow in his first term has been used to attack Ukraine in recent months, according ...

Russia is likely deploying nuclear-capable hypersonic ballistic missiles at a former airbase in eastern Belarus, a move that could strengthen Moscow’s ability to strike targets across Europe, ...