Viper Out
Col. Lee E. Kloos, 388th Fighter Wing commander, addresses guests at the Viper Out ceremony, a farewell to the F-16, Sept. 8, 2017, at Hill Air Force Base, Utah. Kloos recounted the history of the weapon system and people involved in making the “Viper,” as it is affectionately known, an enduring legacy. (U.S. Air Force photo by Todd Cromar)