Which subscription-based service was first developed specifically for military personnel during WWII and later became a model for civilian subscription businesses?

During major conflicts, subscription-based models emerged as crucial systems for military supply chains and civilian support. From World War II's 'War Bond' subscription programs to modern military publication services, these models have evolved significantly while maintaining core principles. This poll tests your knowledge about how subscription models developed within military contexts and their influence on modern subscription-based businesses.

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Victory Mail (V-Mail) subscription service, which later influenced magazine subscription models
Military Ration Card system, which became the foundation for modern meal-kit delivery services
Armed Forces Radio subscription network, which pioneered the model later used by satellite radio
Officers' Equipment Quarterly, which established the framework for modern box subscription services