Japanese minelayer Kamishima
Building. During the very final stages of World War II, in preparation for the anticipated Allied invasion of the Japanese home islands, the Imperial Japanese Navy saw the need to block the entrances to the Sea of Japan to protect Japan’s relatively lightly defended western coast. However, as almost all minelayers had been sunk by that time, an emergency program was begun to construct several small vessels for this task. "Kamishima" was launched by the Sasebo Naval Arsenal on June 12, 1945, and was commissioned into service on July 30, 1945. Operational history. On completion, "Kamishima  was assigned to the Sasebo Naval District, but the surrender of Japan occurred only 15 days after her commissioning. She was removed from the navy list on September 15, 1945. From September 1945 through June 1947, Kamishima" was used as a repatriation vessel, shuttling between ports in Korea and Shanghai, and Kyushu, returning demobilized Japanese troops and civilians. On October 3, 1947, the American occupation forces turned "Kamishima" over to the Soviet Union as war reparations at the port of Nakhodka, where she was subsequently commissioned into the Soviet Navy's Pacific Fleet and transferred to Vladivostok in October. She  was converted at Nikolayevsk-on-Amur port into a hydrography vessel Katun (Катунь). 74.5x7.8x2.6meters. 2x950h.p. 16.5knots. Range - 5000 miles. From year 1954 - boilership. Deleted from TO&E in 1956. In 1955, when the Soviet Navy ended its lease of Port Arthur, the Soviet gifted "Kamishima" and two other former IJN escort ships to China. "Kamishima" served under Chinese flag using the name 'Minelayer No. 50'. It was eventually sold for scrap in the early 1980s.