Steven Pifer is a senior fellow in the Center on the United States and Europe and director of the Arms Control and Non-Proliferation Initiative at the Brookings Institution. He focuses on arms control, Ukraine and Russia. A retired Foreign Service officer, his more than 25 years with the State Department included assignments as deputy assistant secretary of state with responsibilities for Russia and Ukraine (2001-2004), U.S. ambassador to Ukraine (1998-2000), and special assistant to the president and senior director for Russia, Ukraine and Eurasia on the National Security Council (1996-1997). He also served in Warsaw, Geneva, Moscow and London.
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