I-35 was an Imperial Japanese Navy B1 type submarine. Completed and commissioned in 1942, she served in World War II, operating in the Aleutian Islands campaign and the Battle of Tarawa before she was sunk in November 1943. Construction and commissioning I-35 was laid down on 2 September 1940 by Mitsubishi at Kobe, Japan, with the name Submarine No. 143. Renamed I-45 by the time she was launched on 24 September 1941, she was renamed I-35 on 1 November 1941. She was completed and commissioned on 31 August 1942. Service history Work-ups Upon commissioning, I-35 was attached to the Kure Naval District and proceeded from Kobe to Kure. On 1 September 1942, the Japanese activated the Kure Submarine Flotilla, and that day I-35 and the submarine were assigned to the new flotilla, with I-35 as the flagship of the flotilla's commander, Rear Admiral Tadashige Daigo. I-34 replaced her as the flagship on 4 September 1942. From 14 to 21 September 1942, I-34 and I-35 conducted work-ups in the Harima Nada in the Seto Inland Sea, during which a Yokosuka E14Y1 (Allied reporting name "Glen") floatplane assigned to I-35 was damaged beyond repair during launch-and-recovery exercises on 19 September 1942. The two submarines departed the Harima Nada on 21 September and returned to Kure on 23 September 1942. I-35 put to sea again on 6 October 1942 in company with I-34 and the depot ship Santos Maru to conduct joint exercises in the Suo Nada and the Iyo Nada in the Seto Inland Sea, returning to Kure on 13 October 1942. On 18 October 1942, she carried out torpedo attack exercises against a moving target and refueling exercises with Santos Maru. She again got underway from Kure on 19 October 1942 with I-34 and Santos Maru for joint exercises in the Iyo Nada and Bungo Strait, returning to Kure on 28 October 1942. Aleutian Islands campaign On 15 November 1942, I-34 and I-35 were reassigned to the Northern Force in the 5th Fleet for service in the Aleutian Islands campaign. They departed Kure in company on 28 November 1942 bound for Ōminato in northern Honshu, where they arrived on 1 December 1942. On 2 December 1942, I-35 got back underway to transport supplies to the Japanese garrison on Kiska in the Aleutian Islands. Arriving there on 8 December 1942, she unloaded her cargo and put back to sea the same day