


The US has then changed their belief that aircraft, sonar, and depth charges would make the submarine vulnerable to enemy attack. However, America's policy on submarine use changed following the Pearl Harbor attack in 1941. Prior to World War II, submarine warfare was considered ineffective and inexact. The USS Tang sank more than 16,000 tons over the second highest submarine, the USS Flasher (100,231 tons). The most successful of all the American submarines were the USS Tang, which sunk 116,454 tons during World War II. The US Submarines were responsible for laying 18,553 mines. Over 263 US submarines undertook war patrols, claiming 1,392 ships during the war. Did you know that World War II US submarines sunk 30% of the Japanese navy? During World War II, the United States relied on their submarines to do a lot of damage to their opponents.
