Vladimir Putin has already ordered awful, vicious, brutal war crimes. Anything could happen, no one can exclude a nuclear weapon is used. 

European Council President: "What will be the shape of this victory over Russia? I will show full respect for the choice that the Ukrainian authorities"

Andriy Melnyk is one of the most unusual ambassadors of Ukraine. His comments have caused changes in government policy and forced Germans to apologize to Ukraine.

What to expect if a major Russian invasion does not occur? What is a red line for tough US sanctions against Russia and Putin?