Kazuo Sakamaki

 was a Japanese naval officer who became the first Japanese prisoner of war of World War II captured by U.S. forces.
Early life and education.
Sakamaki was born in what is now part of the city of Awa, Tokushima Prefecture, one of eight sons. He was a graduate of the 68th class of the Imperial Japanese Naval Academy in 1940.
Career.
Attack on Pearl Harbor.
Ensign Sakamaki was one of ten sailors (five officers and five petty officers) selected to attack Pearl Harbor in five two-man "Ko-hyoteki" class midget submarines on 7 December 1941. Of the ten, nine were killed (including the other crewman in submarine "HA. 19", CWO Kiyoshi Inagaki.) Sakamaki was chosen for the mission due to his large number of siblings.
After several attempts to enter Pearl Harbor, Sakamaki attempted to scuttle his disabled submarine, which had been trapped on a reef off Waimanalo Beach, Oahu. When the explosives failed to go off, he swam to the bottom of the submarine to investigate the cause of the failure and became unconscious due to a lack of oxygen. The book "Attack on Pearl Harbor" claims that his submarine hit four coral reefs and sank. Sakamaki was found by a U.S. soldier, David Akui, and was taken into military custody. When he awoke, he found himself in a hospital under U.S. armed guard. Sakamaki became the first Japanese prisoner of war in U.S. captivity during World War II and was stricken from Japanese records and officially ceased to exist. His submarine was captured intact and was subsequently taken on tours across the United States to encourage war bond purchases.
After being taken to Sand Island, Sakamaki requested that he be allowed to kill himself, which was denied. Sakamaki spent the rest of the war in prisoner-of-war camps in the continental United States. At the war's end, he was repatriated to Japan, by which time he had become deeply committed to pacifism.
Later life and death.
After the war, Sakamaki worked with the Toyota Motor Corporation, becoming president of its Brazilian subsidiary in 1969. In 1983, he returned to Japan and continued working for Toyota before retiring in 1987. Outside of writing a memoir, Sakamaki refused to speak about the war until 1991, when he attended a historical conference at the National Museum of the Pacific War in Fredericksburg, Texas. He reportedly cried at the conference when he was reunited with his submarine (which was on display at the museum) for the first time in 50 years.
He spent the rest of his life in Japan until his death in 1999 at the age of 81. He was survived by his wife and two children.