William M. Drennan is deputy director of the Institute's Research and Studies Program, specializing in Korean issues. A retired colonel in the United States Air Force (USAF), he was a senior military fellow at the Institute for National Strategic Studies, National Defense University in 199`98. He taught national security policy at the National War College, was a military fellow at the Council on Foreign Relations in 199‰91, and served with U.S. forces in Korea in 198?90. In the mid-1980s, he was a squadron commander and later the deputy commander for operations of a USAF flight training wing. In 198?84, he served as the Air Force aide to President Ronald Reagan. The title of his lecture is "Between the Rock and Hardcase: The U.S. and the Two Koreas."