Hadley Gamble, CNBC correspondent, says the incursion could sour relations between Turkey and Russia.» Read More
Andrew Foxall, director of the Russia Studies Center at the Henry Jackson Society, says that Russia's actions were "pre-planned".
CNBC's Michelle Caruso-Cabrera discusses the economic impact the Ukrainian crisis is having on the Russian economy.
Ukrainian Prime Minister Arseniy Yatsenyuk believes a political and diplomatic solution can be reached, reports CNBC's Steve Sedgwick.
Russia has sent troops to occupy Crimea. NBC's Jim Maceda discusses what leverage the U.S. and the EU have over Russia.
NBC News Correspondent Jim Maceda reports Russian forces have occupied Crimea's airports, ferry ports and telecom towers.
The Ukrainian government is legitimate and Russia "needs to cope with this", Arseniy Yatsenyuk, Ukraine's prime minister told CNBC, urging Putin to "immediately pull back" Russian troops.
Russia is now firmly in control of Crimea, reports NBC's Jim Maceda, with the latest developments in the region.
CNBC's Michelle Caruso-Cabrera reports global stocks are lower but not nearly as low as Russian stocks which are showing signs of capital flight after Putin's threats to invade Ukraine.
The rhetoric is heating up as Russian forces move into Crimea, reports CNBC's Steve Sedgwick on the latest details from the escalating conflict between Ukraine and Russia.
Daragh McDowell, senior analyst at Maplecroft, says Russia is trying to provoke a "Georgian-style scenario" by forcing Ukraine to fire the first shot and says a Western-led military action against Russia is unlikely.
Putin is trying to pressure Ukraine into a certain economic agenda says Volodymyr Ariev, independent minister in the Ukrainian Parliament, adding that the country's army has been significantly weakened.
NATO and the U.K. have called on Russia to "de-escalate tensions", as the Ukrainian acting foreign minister, Andriy Deshchitsya, says Russia has rejected calls for negotiations and consultations.
Russia's intrusion in Ukraine is a declaration of war says Victoria Sumar, Deputy Secretary of the Council of National Security and Defence of Ukraine, adding that Ukraine has "no reason to use armed forces right now."
The European Union has little "beyond the diplomacy card" to punish Russia, reports CNBC's Carolin Roth from Brussels as economic sanctions could have big repercussions for the region's economy.
Russia's energy minister canceled his appearance before a global energy conference, where the Russian invasion of Crimea is now a part of the agenda.
Jonathan Pain, Author of 'The Pain Report', says 'the unimaginable have become imaginable' in Ukraine and markets are now beginning to 'price in a possible contagion'.
U.S. Secretary of State John Kerry's statement to Russia was 'good and sober', says John Herbst, Director of the Center for Complex Operations at the National Defense University.
Russian solders seized control of Crimea on Sunday in a bloodless coup. CNBC's Bill Neely reports.
Leslie Holmes, Professor at the School of Social and Political Sciences at the University of Melbourne, analyzes latest developments in Ukraine after Russia seized Crimea in a bloodless coup on Sunday.
Ian Bremmer, President of the Eurasia Group, explains why he thinks geopolitical uncertainty, sparked by the crisis in Ukraine at the moment, may be at levels worse than the September-11 attacks.