Russian forces have either occupied or surrounded all government buildings, Ukranian military bases, a key port and telecom towers. NBC's Jim Maceda has more on the situation in Ukraine.
Dennis Gartman of the Gartman Letter discusses Russia and Ukraine's impact on commodity prices.
Former U.S Ambassador to Ukraine John Herbst discusses Russia's strategic position in Ukraine as well as what NATO should do now.
Does Vladimir Putin care about the Russian people? CNBC's Steve Liesman and Rep. Adam Kinzinger, (R-IL), House Foreign Affairs Committee, discuss what sanctions and restrictions the U.S. may be able to impose on Russia and how the fallout will affect the Russian people.
Discussing the threat Russian aggression poses to Europe's natural gas supplies, with Willis Sparks Eurasia Group analyst.
Discussing Vladimir Putin's objective and America's options in Ukraine, with Retired Army Colonel Jack Jacobs.
NBC's Chief Pentagon Correspondent Jim Miklaszewski reports there is no talk of a U.S. military attack on Russia and there is no indication Russia is going to move beyond Crimea.
Russia may be able to threaten Europe with nat gas disruptions, but that leverage doesn't extend to the United States.
US stocks fell sharply and gold rose as tensions grew over the situation in Crimea.
President Barack Obama addresses the "deeply troubling" situation in Crimea, and the "costly proposition" overtime for Russia.
CNBC's Mary Thompson reports over three quarters of Russia's natural gas exports go to Europe. Russia cut supplies to the Ukrainian pipeline in 2006 and 2009 over price disputes, leaving Ukrainians without heat.
Investors are looking for value around the world. Where to invest now, with Stephen Wood, Russell Investments, and Kevin Caron, Stifel Nicolaus.
CNBC's Steve Sedgwick reports from Kiev, Ukraine, where flowers and candles remain everywhere where bloodshed took place. He shares his opinions on the politics there.
CNBC's Steve Liesman, and Heather Conley, Center For Strategic & International Studies, discuss Russia's position in the G8 amid crisis in Ukraine.
CNBC's Dina Gusovsky provides insight into how Russian media is portraying the crisis in Ukraine.
CNBC's John Harwood reports the State Department is preparing potential sanctions against Russia over Ukraine.
Germany needs to lead in negotiating an economic solution to the rapidly escalating standoff on the Crimean peninsula, said Jim O'Neill.
Does the U.S. have any "economic pull" over Russia? CNBC's Steve Liesman reports the U.S. may not need "pull" in Russia. He breaks down potential options for a U.S. response.
CNBC's Robert Frank reports the Ukrainian Oligarchs control nearly half of the economy there, and details their stance on the crisis.
CNBC's John Harwood reports the State Department is preparing potential sanctions on Russia over Ukraine.