An E-3 Sentry airborne warning and control system aircraft, known as
AWACS, lands at Tinker Air Force Base, Okla., March 23 after completing
a mission. The first E-3 touched down at Tinker exactly 30 years
to the day and began an new era for air surveillance. (U.S. Air
Force photo/Staff Sgt. Stacy Fowler)
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