SOSUS- The "Secret Weapon" of Undersea Surveillance
By Edward C. Whitman

Born of a three-way marriage of early Cold War strategic necessity, World War II progress in underwater acoustics, and an extraordinary engineering effort, the Navy’s pioneering Sound Surveillance System – SOSUS – became a key, long-range early-warning asset for protecting the United States against the threat of Soviet ballistic missile submarines and in providing vital cueing information for tactical, deep-ocean, anti-submarine warfare. And although subsequent events – most notably the end of the Cold War – robbed SOSUS of much of its mission, its history remains an object lesson in how inspired, science-based engineering development can lead to extraordinary operational effectiveness.

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