Which retail innovation fundamentally changed military equipment distribution during World War II and became a model for modern military supply chains?

The retail landscape for military equipment and memorabilia has evolved dramatically over the centuries. From government-contracted suppliers to modern specialty stores and online marketplaces, the way military equipment reaches its users has transformed. This poll explores a significant retail innovation in military history that changed how armed forces acquired their gear and how this retail transformation impacted military operations worldwide.

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The Quartermaster Mobile Exchange System (QME) that brought PX stores directly to frontline troops
Montgomery Ward's 'Military Division' that allowed families to mail-order equipment directly to soldiers
Sears' 'Victory Catalog' specialized in discounted military surplus for civilian purchase
The Allied Forces Shopping Network (AFSN) that coordinated equipment requests via telegraph