Which famous food preservation product was originally developed during WWII for military use, but later became a household brand with its distinctive green packaging?

Military food technology has evolved significantly over the centuries, transforming from basic survival provisions to sophisticated product lines with recognizable branding and packaging. This poll explores the development of one of the most iconic military food products that later influenced civilian food packaging and preservation techniques. Test your knowledge about how wartime necessity led to consumer product innovation!

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Spam (Hormel Foods)
K-rations (Wrigley's)
DEET insect repellent (SC Johnson)
M&M's chocolate candies (Mars, Inc.)