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Watch Sworn to Secrecy: Secrets of War Season 4 Episode 6 Online
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- COUNTRIES: United States of America,South Korea,United Kingdom,France,Germany,Russia,Vietnam
- Subtitles: English
From the "Battle of the Beams" in WWII, to the evolution of weapons guidance and the blinding effects of electronic jamming, a look at the quest to dominate the "electromagnetic spectrum”.
