Aaron Bateman is a PhD candidate in the history of science and technology at Johns Hopkins University. His research uses recently declassified documents to examine U.S. anti-satellite weapons and space-based missile defense, and their consequences for both arms control and transatlantic security in the final decade of the Cold War. Prior to graduate school, Mr. Bateman served as a U.S. Air Force intelligence officer with assignments at the National Security Agency and the Pentagon. His policy commentaries on national security matters have appeared in War on the Rocks, The Hill, and Bulletin of the Atomic Scientists (among others).