Andrew Wood, former British ambassador to Moscow, says the Ukrainian government has no choice but to try and restore its presence in the east of the country.
The U.S. hasn't sanctioned the Russian natural gas giant, but there's a good reason for that, according to Oilprice.com.
President Obama and German Chancellor Angela Merkel will be holding a joint press conference at the White House. CNBC's John Harwood reports they are expected to display a united front on Russian sanctions.
Ian Bond, director of foreign policy at the Centre for European Reform, comments on Ukraine following the launch of the government's operation to retake control in eastern parts of the country.
Carlo Gallo, founder and director of Enquirisk, says the Ukraine crisis is likely to end through a diplomatic rather than military route.
CEOs and CFOs of top companies tell CNBC about the effect of the Ukraine crisis on their business.
Abi Oladimeji, head of investment strategy at Thomas Miller Investment, says the global economic backdrop is weak but and could be vulnerable to a "shock" if the Ukraine crisis escalates.
Conflict with Russia has not stopped U.S. and European energy giants from exploring investments in Ukraine's fledgling energy sector.
Nader Mousavizadeh, geopolitical analyst at Macro Advisory Partners, says that due to the Ukraine crisis, relations between the West and Russia are nearing a point of no return.
Neil Shearing, chief emerging markets economist at Capital Economics, says Russia is probably in recession and that despite the IMF program, it will be very difficult to see economic stability in Ukraine.
Edmund Shing, global equity portfolio manager at BCS Financial Group, says he is not concerned about the impact that the Ukraine crisis is having on investing.
The IMF has approved a $17 billion loan package for Ukraine, reports CNBC's Dominic Chu. The "Fast Money" traders, weigh in.
The International Monetary Fund announced the two-year loan package for Ukraine following a board meeting at its Washington headquarters.
The world is watching Russia-Ukraine but here's the real geopolitical risk, says Nouriel Roubini.
The IMF mission chief to Moscow said Russia's growth forecast for the year had been cut from 1.3 percent to 0.2 percent.
Otilia Dhand, vice president at Teneo Intelligence, discusses Russian interests in Ukraine and how sanctions from the European Union and the U.S. are unlikely to change Moscow's policy.
CNBC's Brian Sullivan sits down with former NATO Supreme Allied Commander Gen. Wesley Clark to discuss the Ukraine crisis and how severe it can get.
NBC's Jim Maceda was in Eastern Ukraine's city of Donetsk Monday when pro-Russians attacked pro-Ukrainian demonstrators at a rally on Monday.
Jesse Sherman, portfolio manager at Renaissance Asset Management, says investors are "spoiled for choice" when investing in Russian stocks as they trade at a big discount in relation to other emerging markets.
Giles Keating, Head of Research & Deputy Global CIO at Credit Suisse, says the probability of a gas disruption in Europe due to tensions in Ukraine is "immensely low."