Biden says US will not be intimidated by reckless Putin
President Putin appeared to make a veiled threat to use nuclear weapons to defend those regions.
President Putin appeared to make a veiled threat to use nuclear weapons to defend those regions.
Russian forces are continuing to drop bombs on the Azovstal iron and steelworks, according to Petro Andryushchenko, an adviser to the mayor of the besieged Ukrainian city of Mariupol.
The United States, the European Union and Britain have warned Putin against attacking Ukraine.