Rodney McKinley enlisted in the Air Force in July 1974. After his first enlistment, he left the service in 1977 to attend college and then re-entered service in the Air Force in 1982. He served in combat roles in both Operation Enduring Freedom and Operation Iraqi Freedom. In 1006 he was selected the Fifteenth Chief Master Sergeant of the Air Force, serving in that top enlisted role until his retirement in 2009.