Maj. Timothy Kerrigan, Civil Engineer Squadron commander, addresses his troops after assuming command during a change of command ceremony at Grissom Air Reserve Base, Ind., June 4, 2017. During the ceremony, Maj. Timothy Kerrigan took command of the 434th Civil Engineer Squadron. ( Air Force photo/Senior Airman Cali Wetli)

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Size: 4928px × 3280px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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