The United States deployed the SOSUS (Sound Surveillance System)—a hydrophone network of passive acoustic sensors—across the northern Atlantic during the Cold War to detect Soviet submarines attempting to transit to the North Atlantic, and similar systems are currently deployed along the exits of the first island chain.
factualpending
Speaker
Caitlin TalmadgeEvidence Quote
“the first of these barriers is a type of barrier that the United States had in the Cold War if you're if you've ever heard of Celsius or the sound surveillance system which was a hydrophone network that the U.S deployed across the northern Atlantic in the Cold War to basically catch Soviet submarines”
Source
Then What? Assessing The Military Implications Of Chinese Control Of Taiwan | Hoover Institution— Hoover InstitutionCreated: 8/11/2026, 1:53:18 AM
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