Mr. Kosiak is the Director of Budget Studies at the Center for Strategic and Budgetary Assessments where he performs research and analysis of defense spending trends, force structure and weapons systems costs and the budgetary consequences of arms control measures, among other related defense budget issues. Prior to joining CSBA in 1991, Mr. Kosiak was senior analyst at the Center for Defense Information, with responsibility for researching and writing on a wide variety of defense issues. He has worked on Capitol Hill and in the Office of the Defense Advisor at the U.S. Mission to the North Atlantic Treaty Organization. He is the author of CSBA's annual budget analysis and contributes significantly to other publications on defense and security issues.