On 13 December, Gazprom said it could stop supplying gas to Ukraine if no agreement is reached by the end of the year.
President Viktor Yushchenko fired Tymoshenko, a former Orange Revolution ally, in September complaining of her economic policies. Since then, she has emerged as a strong political competitor ahead of parliamentary elections next March.
Celeste Wallander directs the Russia and Eurasia Program at the Center for Strategic and International Studies and is a CSIS senior fellow. Before joining CSIS, she was senior fellow at the Council on Foreign Relations in Washington, D.C., and associate professor of government at Harvard University. She is the founder and executive director of the Program on New Approaches to Russian Security. Her recent projects include work on U.S.-Russian security cooperation, the history of Russia and globalization, HIV/AIDS in Russia, and the 2004 Ukrainian presidential election. Among her books are "Swords And Sustenance: The Economics Of Security In Belarus And Ukraine" and "Mortal Friends, Best Enemies: German-Russian Cooperation After The Cold War." She is currently writing "Global Russia: Economics, Politics, And Security."
On November 29, 2005, she spoke with RFE/RL's Ukrainian Service about Russia's energy policies and how Moscow might be seeking to leverage its influence over its neighbors. Listen to the complete interview.
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To read a transcript of the interview,click here.