StevenPifer is a senior fellow in the Center on the United States and Europe anddirector of the Arms Control and Non-Proliferation Initiative in the Center on21st Century Security and Intelligence at the BrookingsInstitution. 

He focuses on arms control, Ukraine and Russia.  Hefrequently comments on these issues in the media, including on National PublicRadio, CNN, BBC and Fox News, and his articles have run in the New York Times,Washington Post, Financial Times, National Interest, Kyiv Post and MoscowTimes, among others.  He is co-author of The Opportunity:  NextSteps in Reducing Nuclear Arms. 

Aretired Foreign Service Officer, his more than 25 years with the StateDepartment focused on U.S. relations with the former Soviet Union and Europe,as well as arms control and security issues. He served as deputy assistantsecretary of state in the Bureau of European and Eurasian Affairs withresponsibilities for Russia and Ukraine (2001-2004), U.S. ambassador to Ukraine(1998-2000), and special assistant to the president and senior director forRussia, Ukraine and Eurasia on the National Security Council (1996-1997). Inaddition to Ukraine, he served at the U.S. embassies in Warsaw, Moscow andLondon as well as with the U.S. delegation to the negotiation onintermediate-range nuclear forces in Geneva