U.S. Air Force Lt. Col. Michael Ferrario, 157th Fighter Squadron commander and deployed detachment commander, assigned to the Air National Guard’s 169th Fighter Wing from McEntire Joint National Guard Base, S.C., responds to questions during a media day event at Kallax AB, Luleå, Sweden, May 23, 2019, during Arctic Challenge Exercise 2019. ACE 19 is a Nordic aviation exercise that provides realistic, scenario-based training to prepare forces for enemy defensive systems. Interoperability and combined training during exercises like ACE 19 enhances professional relationships and improves overall coordination with allies and partner militaries. (U.S. Air National Guard photo by Senior Master Sgt. Edward Snyder)