Ukrainian mayor says with Black Sea blockade, Putin seeks to "blackmail the whole world" by starving its neediest

Dnipro, Ukraine — Towns in Ukraine's eastern industrial heartland of Donbas are being reduced to ash by Russia's advancing forces. Ukraine's leaders, and its soldiers on the battlefield, say it won't stop there.

"It's not just the Donbas region they're after," one Ukrainian soldier warned of Vladimir Putin's forces. "They want to move forward. They send their people to death…to destroy our nation."

But Russia's animosity appears to extend even beyond Ukraine's borders.