Explainer: Has Russia 'invaded' Ukraine?

When Russian President Vladimir Putin authorized troops to cross Ukraine's border into regions controlled by Russian-backed separatists, the White House initially stopped short of calling it an invasion. But not all invasions are viewed as equal.

Ukraine-Russia Crisis: Cyberattacks could affect U.S.

If Russia mounts cyberattacks against the United States, the targets could include banks, power plants, water treatment facilities, and communications. Those attacks could also impact GPS for navigation, farming, automation, and oil exploration.

Texas couple returns home after adopting boy from Ukraine

A South Texas couple just got back to the United States with their newly adopted son from Ukraine. They managed to get on one of the last flights out of the country before airlines began canceling service.

Kamala Harris says 'real possibility of war' in Europe

At the annual Munich Security Conference, vice president Kamala Harris tried to make the case to American allies that rapidly escalating tensions on the Ukraine-Russian border meant European security was under “direct threat.”