9 ฤดูกาล
65 ตอน
Sworn to Secrecy: Secrets of War - Season 9 Episode 5
As the armies of World War One struggled under an onslaught of terrifying weapons, the German government broke the stalemate and issued in a new era of warfare by turning to covert operations.
- ประเทศ : United States of America, South Korea, United Kingdom, France, Germany, Russia, Vietnam
- ประเภท : War & Politics, Documentary
- ผู้อำนวยการ :
- นักแสดง : Charlton Heston
