Lt. Col. James Chester is a doctrine author in the Combined Arms Doctrine Directorate, U.S. Army Combined Arms Center, Fort Leavenworth, Kansas, and was one of the authors of Field Manual 3-0: Operations. Previously, he served as a battalion executive officer supporting the U.S. Southern Command and U.S. Army South. He also served in Germany, Iraq, the Republic of Korea and throughout the U.S. He has a master’s degree in public policy and management from the University of Pittsburgh.