A B-2 Spirit Stealth Bomber takes off during Red Flag 21-1 at Nellis Air Force Base, Nevada, Jan. 26, 2021. The B-2’s stealth characteristics give it the ability to penetrate an enemy’s most sophisticated defense and threaten its most-valued, heavily defended targets while avoiding adversary detecting, tracking and engagement. (U.S. Air Force photo by Staff Sgt. Sadie Colbert)