[諜報・防諜] インテリジェンス総合 45

[0357 名無し三等兵 2019/03/16(土) 23:35:04.82 ID:jO5/0rEO]

Sound Surveillance System (SOSUS)
ttp://www.thedrive.com/the-war-zone/17903/china-reveals-it-has-two-underwater-listening-devices-within-range-of-guam