Which groundbreaking retail innovation was first introduced by the US Army & Air Force Exchange Service (AAFES) in 1985, revolutionizing shopping for deployed troops?

Military exchanges (PX/BX) have been vital retail institutions serving armed forces personnel for centuries. These unique retail locations offer tax-free shopping and support military community programs. Beyond convenience, they represent an innovative retail model that has evolved from simple sutler wagons following troops to sophisticated global operations with billions in annual revenue. This poll explores a fascinating turning point in military retail history that changed how service members shop worldwide.

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Mobile PX - tactical retail vehicles that could follow combat units into forward areas
Catalog Shopping Program - allowing troops to order American products via mail from anywhere in the world
IMPAC (International Merchant Purchase Authorization Card) - the first military-specific credit card
Desert Express - an air freight system delivering retail goods to Middle East bases within 48-72 hours