Submarines of the Imperial Japanese Navy
Imperial Japanese Navy submarines originated with the purchase of five Holland type submarines from the United States in 1904. Japanese submarine forces progressively built up strength and expertise, becoming by the beginning of World War II one of the world's most varied and powerful submarine fleets.
Japanese submarine I-23
I-23 was a Type B1 submarine of the Imperial Japanese Navy during World War II. After a raid on the West Coast of California she participated in an attempt at a second attack upon Pearl Harbor. After surviving an American air attack on Kwajalein "I-23" was lost in early 1942 with all hands somewhere off the Oahu coast of Hawaii.