Retired U.S. Ambassador David Greenlee speaks to Joint Task Force forward headquarters staff members about the relationship between the embassy ambassador and a JTF headquarters during exercise Blue Flag 19-1, May 9, 2019. The retired ambassador participated as the JTF forward headquarters Politcal Advisor for the Noncombatant Evacuation Operations scenario. (U.S. Air Force photo by Tech. Sgt. Amanda Dick)