The Donbas region, the site of two breakaway republics created by Russia-backed separatists in 2014, has become the site of some of the heaviest fighting in recent days, a senior U.S. official says.
Thousands of Russians have left their country since their government began its invasion of Ukraine. Many have settled in Georgia, a country with a complicated history with its neighbor to the north.
As Russia's war in Ukraine grinds through its fourth week, President Vladimir Putin's greatest accomplishment so far may be one he never intended: a unified Europe.