Which packaging innovation, developed during WWII, revolutionized military logistics by allowing supplies to be safely airdropped to troops in difficult terrain without damage?

Throughout military history, innovations in packaging and supply have often been as crucial as weapons development. From ancient Rome to modern warfare, how troops received their supplies has determined the outcome of countless conflicts. This trivia question focuses on a revolutionary packaging innovation that transformed military logistics and extended operational capabilities in the 20th century.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

The K-ration cardboard box with wax coating
The corrugated steel ammunition container
The wooden pallets and containerization system
The parachute-deployable ripcord container (PDRC)