The military discount and veteran discount is under the government purchase program. You will need to sign up at this address: http://store.apple.com/us_epp_55499 and purchase items online. We recommend calling Apple to determine if you can pick up in store.
Corporate stores and franchisees have different policies as it relates to military discounts and veteran discounts. Call the local store and see if they are participating in a military discount program. You must have a valid military ID to be eligible for regular discounts. On veterans day, a DD-214, state issued ID card or membership into a veteran service organization will be accepted as proof of service.