What if the most important battle of the Cold War wasn’t fought in the sky or on land—but 400 feet beneath the freezing ocean? In this documentary, we uncover the incredible true story of Operation Ivy Bells, one of the boldest and most secretive intelligence missions ever conducted by the United States during the Cold War. While the world feared nuclear war between America and the Soviet Union, a small team of elite U.S. Navy submariners and divers risked everything to infiltrate one of the Soviet Union’s most heavily guarded waters. Their mission seemed impossible: locate a top-secret Soviet underwater communication cable in the Sea of Okhotsk and secretly listen to conversations between Soviet military commanders—without cutting the cable or alerting the enemy. Using the specially modified USS Halibut, advanced underwater technology, and extraordinary courage, American divers descende

Source: The CIA Secret Mission That Stole Soviet Nuclear Secrets from the Ocean