The United States and NATO have formally rejected Russia's demands that NATO bans Ukraine and other former Soviet states from joining the alliance.
CBS News foreign correspondent Holy Williams joins CBS News to discuss more.
'Diplomacy is the responsible way,' Kyiv urges Russia to pull back troops from Ukrainian border
Rumble
As tensions ramp up at the Russia Ukraine border, western leaders continue to pursue a two-pronged approach to de-escalate- one is..
