Luke Air Force Base expects to get its first F-35 in the near future.
Officials say they don't have a specific date but now believe the arrival of the new fighter could be as early as next week.
Luke is a pilot-training base that has been selected for F-35 training, while operational units flying the F-35 will be located at other Air Force bases.
Luke officials say they'll hold a formal ceremony in mid-March to mark the F-35's arrival.
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