![](http://www.alamy.com/thumbs/6/B13D7134-4FB5-4DC8-A99F-C9785F999998/FFGXNJ.jpg)
Two Colombia air force F-21 Kfirs perform refueling operations during Red Flag 12-4. The first F-21 Kfir entered service in 1976.
Size: 2560px × 1704px
Photo credit: © LOU Collection / Alamy / Afripics
License: Licensed
Model Released: No
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