Gen. Tony McPeak, USAF Ret., 14th US Air Force chief of staff and a 2017 Air Force Association Lifetime Achievement Award recipient, reflects on lessons learned from reorganizing the US Air Force and why military jointness can be a challenge for the service during Part 4 of his Sept. 18, 2017, interview at AFA’s 2017 Air, Space & Cyber conference and trade show. The event was held in National Harbor, Md., just outside of Washington. The Defense & Aerospace Report’s coverage is sponsored by L3 Technologies and Leonardo DRS, and this interview is in partnership with the Air Force Association.