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The Sinking of USS Underhill: A Tragic Kaiten Attack in WWII

The Unexpected Attack on USS Underhill

On the turbulent seas of World War II, one event stands out for its dramatic impact and tragic consequences: the sinking of the USS Underhill (DD-682) by a Japanese Kaiten manned torpedo. This incident occurred on July 24, 1945, as the US Navy was routinely patrolling the waters west of Guam. The Kaiten, a type of human torpedo designed for carrying out suicide attacks, was a pivotal element of Japan's naval strategy during the waning days of the Pacific War. This underwater assault would go on to lead to considerable loss of life among the crew of USS Underhill.

Understanding the Kaiten Torpedo

The Kaiten was not just any torpedo; it was a manned suicide weapon intended to enhance the battle effectiveness of the Imperial Japanese Navy. Resembling a traditional torpedo, the Kaiten was equipped with a cockpit for a pilot. Its purpose was simple yet grim: to strike enemy vessels by directing the piloted torpedo directly towards its target. This tactic illustrated the desperate measures Japan was willing to take as the war turned against them.

The Fateful Encounter

On that ill-fated day, the USS Underhill, a destroyer tasked with anti-submarine operations, was struck by the Kaiten while operating off the coast of Guam. The torpedo hit its mark with an explosion that left little time for the crew to react. The assault resulted in extensive damage to the ship and quickly claimed the lives of many sailors. The ensuing chaos led to a significant loss of life, with nearly half of the ship's 234 crew perishing in the attack.

The Aftermath of the Attack

The sinking of the USS Underhill was a stark reminder of the relentless and often unpredictable nature of naval warfare. In total, 116 crew members lost their lives that day, representing one of the most tragic casualties for the US Navy in its efforts toward securing victory in the Pacific. The incident underscored the persistent threat posed by Japanese forces, even as Japan faced impending defeat.

Legacy of USS Underhill

The legacy of the USS Underhill remains significant in the annals of naval history. The ship was ultimately salvaged but was not returned to service, marking an end to its operational career. The events surrounding its sinking highlight the bravery of sailors and the psychological toll that such warfare inflicts on both enemy combatants and their own teams during desperate times of conflict.

Impact on Naval Tactics

The sinking also prompted reassessments of naval tactics, particularly regarding the use of advanced techniques like the Kaiten. This type of guerrilla warfare illustrated the lengths to which nations would go to evade defeat, leading to changes in how the US Navy approached enemy encounters in the remaining months of the war.

Fun Fact

The Kaiten’s Unique Design

One of the most fascinating aspects of the Kaiten was its design; it was not only a weapon but also a vessel that required a significant level of training for pilots. The sailors who used the Kaiten understood the deadly nature of their mission, as survival was highly unlikely following a successful attack.

Additional Resources

Recommended Reading on USS Underhill

For those interested in further exploring the tragic events surrounding USS Underhill and the Kaiten, consider these resources: "The New Illustrated History of the American Revolution" and "Victory at Sea: America's Naval Strategy in World War II" . These works provide a broader context of naval warfare during WWII and the innovative, yet brutal, tactics used.