Austin Scott Miller is a retired four-star general in the United States Army and former Delta Force commander who served as the final commander of NATO's Resolute Support Mission and United States Forces – Afghanistan from 2 September 2018 to 12 July 2021. He previously served as the commander of Joint Special Operations Command from 30 March 2016 to August 2018. He participated in numerous combat operations, such as the Battle of Mogadishu in 1993, and, since 2001, the wars in Iraq and Afghanistan. He retired from the Army in December after relinquishing command in July 2021. Miller currently serves on the board of advisors for Striveworks and the board of directors for Workhorse.

The 1st Special Forces Operational Detachment–Delta, referred to variously as Delta Force, Combat Applications Group (CAG), or within Joint Special Operations Command (JSOC), Task Force Green, is a special operations force of the United States Army, under operational control of JSOC. The unit's missions primarily involve counterterrorism, hostage rescue, direct action, and special reconnaissance, often against high-value targets.