John Kreis is a Research Staff Member in the Operational Evaluation Division at the Institute for Defense Analyses in Alexandria, Virginia. He as served in that position since 1997, having previously served as a Adjunct Staff Member (1994-1997) and as a Consultant (1987-1994).

Prior to joining IDA, he served as a consultant to Eagle Aviation Services Technology (1988-1992), Highflight, Ltd. (1987-1990), OP24, Ltd. (1989-1989), and Analytic Services, Inc. (1987-1989).

From 1962 to 1987, he serves as a Security Police Officer and Air Warfare Analyst (Office of Air Force History) with the United States Air Force.

He holds a BA in Economics from Willamette University (1962); and an MA in History from the University of Delaware (1975). He attended the FBI National Academy in 1973 (winner of the J. Edgar Hoover Award); the Industrial College of the Armed Forces in 1974; the Air War College in 1978; the Air Command and Staff School in 1977; the Northwestern University Traffic Institute in 1972; and the U.S. Army Combat Intelligence Officer School in 1970.

He is the author of numerous books and articles, and participates in a variety of professional associations.