Veteran Eurasia expert Steven Pifer says Vice President Joseph Biden's trip to Ukraine and Georgia was meant to balance President Barack Obama's Moscow summit earlier in the month, but in both countries, Biden had to convey tough messages.

Jeffrey Mankoff, an expert on Russia, says the dispute that led Russia to cut off natural gas to Ukraine has its origins in differences over pricing as well as Ukraine's interest in closer ties with the West.

Robert E. Hunter, who was U.S. ambassador to NATO during the Clinton administration, says he does not expect NATO foreign ministers to enlarge the alliance to include Georgia or Ukraine at the next meeting in December.

Steven Pifer, an expert on Russian affairs and former U.S. ambassador to Ukraine, says U.S.-Russia relations have "deteriorated significantly" since their high point just after 9/11. The next U.S. administration should return to negotiations on limiting strategic arms and other areas of mutual interest, he says.

Charles A. Kupchan, professor of international affairs at Georgetown University, says the just-concluded NATO summit illustrates the changes taking place in the alliance, where it will become increasingly difficult to reach agreements on issues.

Steven Pifer, former U.S. ambassador to Ukraine, sees little chance a constitutional court will resolve Ukraine’s political crisis, and points to missteps by the Ukrainian president.

Taras Kuzio discusses the current political crisis in Ukraine and what it means for the country's relations with the United States, the European Union, NATO, and Russia.

Arch Puddington discusses the growing list of governments that are using the criminal justice system to punish former leaders, including Ukraine which recently sentenced former prime minister Yuliya Tymoshenko.

A deal to extend the stay of Russia's Black Sea Fleet in the Crimea in exchange for up to $40 billion worth of gas discounts stops Ukraine's drift toward NATO, but political-military integration with Russia is not in the interests of the nation.

This paper from the German Marshall Fund of the United States notes Georgia's better performance compared to Ukraine in two key areas of reform: improving the rule of law and battling corruption. The paper says that Ukraine’s failure to capitalize on the hopes raised by the ‘Orange Revolution’ has been highlighted by the recent Nato summit in Riga, where it became plain that plans to fast track Ukraine’s NATO membership application have been shelved indefinitely.

Walter Russell Mead comments that the recent Ukrainian election was a "setback" to the spread of democracy in the world.

Daniel Senor and Christian Whiton argue that the 2004 Orange Revolution in Ukraine can serve as a model for democratic reform in Iran.

Taras Kuzio discusses the current political crisis in Ukraine and what it means for the country's relations with the United States, the European Union, and Russia.

This winter marks the fifth anniversary of Ukraine's Orange Revolution, when over one million citizens took to the streets of Kiev and succeeded in overturning the results of that country's presidential election. Steve York's documentary, Orange Revolution, follows the contest between opposition leader Viktor Yushchenko and his adversary Viktor Yanukovych, capturing the iconic images that defined the election and ensuing protests.

Here, after a screening of Orange Revolution, Peter Ackerman, David J. Kramer and Steve York discuss the significance of the Orange Revolution for Ukraine and nonviolent democracy movements elsewhere.