Normally, the military discounts programs on some occasions of the year. In order to know whether it is offered or not is depended on Ninjao.com's policy sales, you can visit the store now for your reference.

Of course not, most coupons may be used only by you when you received them directly from Ninjao.com. As the Ninjao.com coupon includes your User ID, it cannot be resold or transferred in any way.

Usually, Coupon Stacking is not allowed at Ninjao.com. However, the store will surely give out notice if available.

Yes. The old coupons from Ninjao.com will be kept on the page if it has not expired. New coupons will continuously be updated.