Dr. Alexander H. Levis is a University Professor of Electrical, Computer and Systems Engineering and head of the System Architectures Laboratory of the C3I Center at George Mason University. For the past 20 years, Dr. Levis has conducted basic and applied research in and taught many aspects of command and control. He served as the Chief Scientist of the U.S. Air Force for three years where he advised the Chief of Staff and Secretary of the Air Force on a wide range of scientific and technical issues.