Well-traveled Brig. Gen. Mark Hart of the Tennessee National Guard knows firsthand the sacrifices of families — and especially children — that have members serving in the military.

That’s why Hart, for the second year in a row, was proud to help recognize and honor area military children and the special contributions they make at Sunday’s “Military Kids Serve Too” program at the Knoxville Zoo.

Hart presented customized challenge coins to about 75 children of servicemen and women at the second annual event, hosted by the American Red Cross of East Tennessee.

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