Which military product innovation, originally developed during World War II, revolutionized warfare with precision guidance technology and later became the foundation for modern GPS navigation systems?

Throughout history, certain military product innovations have revolutionized warfare and shaped the outcome of conflicts. These technological advancements often began as specialized military equipment before finding applications in civilian sectors. This trivia question focuses on a groundbreaking military product development from the mid-20th century that transformed both combat operations and eventually influenced civilian technology. Test your knowledge of military history and product innovation!

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Proximity fuses for artillery shells
Radio-controlled guided bombs (like the German Fritz X)
Magnetic naval mines with acoustic triggers
Infrared night vision scopes for rifles