Tom Shull has been a key figure in the histories of some of best-recognized retailers in the world.

In the early 90s, the Harvard-educated executive helped lead restructuring efforts at Macy’s and negotiate the famed department store’s exit from bankruptcy and eventual sale. In 1997, he was the first non-family member named CEO of Barneys New York.

Now, as the first civilian to ever lead the U.S. Army and Air Force’s expansive but little-publicized retail operation, Colorado-born Shull is looking to provide a tangible thank you to fellow honorably discharged veterans: tax-free online shopping. …

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