Which retail payment innovation was first widely implemented in military exchanges before becoming common in civilian retail?

The military's retail system isn't just about selling uniforms and gear. The Army & Air Force Exchange Service (AAFES) and Navy Exchange (NEX) represent some of the largest retail operations in the world, serving military personnel globally. These organizations have pioneered retail technologies that sometimes precede civilian adoption. Test your knowledge about how military retail operations have influenced modern shopping experiences and technological advancements in the retail sector.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Star Card: The first successful store-specific credit card with electronic validation (1979)
Eagle Cash: Biometric payment system using fingerprint recognition (1982)
NavyPay: First mobile payment app using QR codes (1991)
ArmyWallet: Contactless card payment system with RFID technology (1985)