Which military packaging innovation from WWII revolutionized food preservation and later became standard in civilian retail products?

Throughout military history, food packaging for troops has evolved dramatically, influencing civilian packaging technologies we use today. From the American Civil War's canned goods to modern MREs (Meals Ready to Eat), military packaging innovations have prioritized preservation, portability, and practicality under extreme conditions. Test your knowledge about how military ration packaging has changed the face of both warfare logistics and everyday consumer packaging.

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DEHY process (dehydrated food pouches)
K-Ration waxed cardboard boxes
SPAM key-opened tin cans
CAMP process (Combined Application of Military Packaging)