9 시즌
65 삽화
Sworn to Secrecy: Secrets of War - Season 4 Episode 9 에피소드 9 (1999)
From silent one-man midget subs to U-boats on secret missions, both sides used secret submersibles of all shapes and sizes to conduct clandestine warfare in the war.
- 국가 : United States of America, South Korea, United Kingdom, France, Germany, Russia, Vietnam
- 유형 : War & Politics, Documentary
- 사진관 : History
- 감독 :
- 캐스트 : Charlton Heston
