Since its independence from the Soviet Union, Ukraine has wavered between the influences of Moscow and the West, surviving scandal and conflict with its young democracy intact.
An anti-vaccine convoy that started three weeks ago in Canada has struck a nerve in Europe, where organizers are planning similar protests against COVID-19 regulations.
A senior U.S. military official gave additional details in a background briefing Friday on the intelligence that led the U.S. to warn that Russia could invade Ukraine in the coming days.
Scott Simon talks to political scientist Harun Yilmaz, who argues that Russia will gain less by actually invading Ukraine than by threatening to do so.
The White House is warning that a Russian invasion of Ukraine could happen within days, though U.S. officials don't believe a final decision has been made, or know the scope of a potential invasion.
"That's a world war — when Americans and Russians start shooting at one another, we're in a very different world than we've ever been in," President Biden said.