Colonel Gregory McMillan graduated from the University of Tennessee, Knoxville, in 1988 after being commissioned as a second lieutenant in infantry in 1986 under an early commissioning program. He attended infantry officer basic course and was assigned to 1st Battalion, 504th Parachute Infantry Regiment, 82nd Airborne Division, and led his platoon in a combat parachute assault into Panama as part of Operation Just Cause in December 1989. McMillan deployed with the same unit as Battalion Assistant S-3 as part of Operation Desert Shield/Desert Storm.
McMillian departed active duty in September 1992 but remained in the individual ready reserve. In 1999, McMillan branch transferred to civil affairs assigned to the 489th Civil Affairs Battalion (Reserve), and after 9/11, deployed to Afghanistan in January 2002 as a team leader in support of Operation Enduring Freedom. Upon his redeployment, he reentered active duty and served in several staff positions of increasing responsibility in the US Army Civil Affairs and Physiological Operations Command (Airborne). His service culminated as the joint operations center director for US Indo-Pacific Command, retiring in 2017 with 33 years of service.
Following his retirement, he returned to the US Army Civil Affairs and Physiological Operations Command (Airborne) as a Department of the Army civilian strategic planner.
McMillan and his wife, Michelle, reside in Spring Lake, NC.
