Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-6:30pm ET on CNN.
Less than a year after Putin's New York Times op-ed condemning the use of force in Syria without UN consent, Russia has troops on the ground in Ukraine. CNN's Brian Todd reports many are now calling the Russian leader a hypocrite.
In an exclusive interview with Wolf Blitzer, United Nations Envoy to Ukraine Robert Serry details his violent encounter in Crimea with gunmen who ultimately forced him from his mission.
VICE News Reporter Simon Ostrovsky gets close to the troops on the ground in Crimea, who refuse to reveal their national identity, as they surround Ukrainian military bases.
Wolf Blitzer talks to CNN's Christiane Amanpour and New York University's Stephen Cohen, a Russian expert, about the rising rhetoric around the crisis in Ukraine and who is responsible for starting the conflict - an aggressive Russia or a nationalist Ukraine.
CNN's Brian Todd examines Russian President Vladimir Putin and what is behind his aggression in Ukraine - from restoring the Russian empire to extreme paranoia.
CNN's Barbara Starr has the latest U.S. intelligence on what military options the Russians are considering taking against Ukraine.
CNN's Jim Sciutto is at the Magic Wall to explain why Ukraine has become such an important battleground between Russia and the West and what's really at the heart of the crisis.
NOTE: Those 22% of Americans who say the U.S. should act as the "world's policeman" were part of a CNN/ORC Poll conducted in September 2013, just as the U.S. was contemplating a strike in Syria.
CNN's Wolf Blitzer talks to Sen. John McCain about the Ukraine crisis - the result of Pres. Obama's "feckless" foreign policy, he says - and proposes some actions that the U.S. should take against Russia.
CNN's Fareed Zakaria forecasts what President Obama meant in saying, "there will be costs" for Russian intervention.
Sen. John McCain discusses the unfolding crisis involving Ukraine and Russia.