Original sentence: After successfully completing her tour with the USAF Thunderbirds in November 2007, Maj Malachowski served as Deputy Chief of the Air Force Warfare Center Commander's Action Group at Nellis Air Force Base, Nevada, from November 2007 to June 2008
Edited sentence: After successfully completing her tour with the USAF Thunderbirds in November 2007, after approximately 140 performances, Major Malachowski served as Deputy Chief of the Air Force Warfare Center Commander's Action Group at Nellis Air Force Base, Nevada, from November 2007 to June 2008