DALLAS — The Army and Air Force Exchange Service is welcoming home 18.5 million honorably discharged veterans with a lifetime online military exchange shopping benefit. Veterans can now shop online at ShopMyExchange.com, marking the first expansion of military exchange privileges since 1990. "The Exchange is honored to open its virtual doors to millions of deserving veterans," said Exchange Director/CEO Tom Shull, a Vietnam-era Army veteran who worked to secure the change in Department of Defense policy after joining the Exchange in 2012.