When World War II broke out, Sweden faced the task of building and modernizing its military supply system. With significant investments and rapid adjustments, the war industry expanded across the country. In this episode, we visit Tolarpsberget, where ammunition was produced for Bofors' popular 40mm anti-aircraft artillery. This is the fourth part of the series The Hidden Industry.

The episode is subtitled in Swedish and English.

Join us for military archaeology - Hårsfjärden’s Anti-Aircraft Defense ►
   • När hotet växer - Hårsfjärdens Luftvärn  

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Tour organizer: The Swedish Fortification Society, Fortification-West.