Former U.S. Ambassador to Ukraine
Steven Pifer is a senior fellow at the Brookings Institution, where 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, U.S. ambassador to Ukraine, and special assistant to the president and senior director for Russia, Ukraine, and Eurasia on the National Security Council.