A street sign depicting OODA Loop sits on display February 3, 2020, at Maxwell Air Force Base, Alabama. The looping street is a play on the acronym for which it's named: Observe, Orient, Decide, Act. These steps are performed in a loop to determine courses of action. The OODA loop "Observe-Orient-Decide-Act" was developed and first introduced by military strategist Colonel John Boyd, USAF, in 1986. (U.S. Air Force photo by Staff Sgt. Quay Drawdy)