Which innovative retail concept was first introduced by the U.S. military during the Civil War that revolutionized how soldiers purchased personal items and eventually evolved into the modern Post Exchange (PX) system?

Throughout military history, how soldiers accessed supplies and personal items has evolved dramatically. The modern military retail system known as the Post Exchange (PX) or Base Exchange (BX) has been a critical element of troop morale and readiness. This poll explores a fascinating innovation in military retail history that changed how armed forces personnel shop while deployed or on base. Test your knowledge about this retail evolution that impacted millions of service members worldwide!

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Sutler wagons - mobile private merchants officially licensed to follow troops
Canteen system - government-operated retail stores with fixed prices and profit limits
Military scrip program - paper currency exclusive to military bases
Commissary vouchers - ration supplement cards for additional purchases