I-25 (イ-25) was a B1 type (I-15-class) submarine of the Imperial Japanese Navy that served in World War II, took part in the Attack on Pearl Harbor, and was the only Axis submarine to carry out aerial bombing on the continental United States in World War II, during the so-called Lookout Air Raids, and the shelling of Fort Stevens, both attacks occurring in the state of Oregon.
A Japanese Ko-hyoteki-class midget submarine, believed to be Midget No. 14, is raised from Sydney Harbour on 1 June 1942.
American servicemen inspecting a shell crater after the I-25's attack on Fort Stevens
Warrant Flying Officer Nobuo Fujita.
Nobuo Fujita standing by his Yokosuka E14Y "Glen" seaplane.
The Type B1 submarine , also called I-15-class submarine was the first group of boats of the Type B cruiser submarines built for the Imperial Japanese Navy (IJN) during the 1940s. In total 20 were built, starting with I-15, which gave the series their alternative name.
I-26
Japanese B1-type I-15 submarine on initial sea trials 15 September 1940 with integral aircraft hangar visible