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    Shimonoseki Strait (Kanmon Straits)  Japan
Map
USAAF 1945
Location
The Shimonoseki Strait (Straits of Shimonoseki) separates Shimonoseki in Yamaguchi Province on southern Honshū and Kitakyushu (today Moji) on northern Kyūshū in southern Japan. Also known as Shimonoseki Straits or Shimonoseki Channel. In Japanese, known as the Kanmon Straits (Kanmon-kaikyō) 関門海峡 with the name formed by the two bordering towns: Shimonoseki (Kan) and Kitakyush (mon). In the 1800s known to the west as the Straits of Van der Capellen. In some American wartime sources, misspelled as Kammon Strait or Kammon Channel. To the east is the Seto Inland Sea. To the west is the Korea Strait. At the eastern entrance is Hesaki Light on the northern tip of Kyūshū.

Wartime History
During the Pacific War, Shimonoseki Strait was an important shipping route for Japanese warships and vessels. In late March 1945 began Operation Starvation with 20th Air Force (20th AF) B-29 Superfortress releasing aerial mines in Shimonoseki Strait until the surrender of Japan. Operation Starvation was divided into three phases. The mines result in many ships sunk.

American missions against Shimonoseki Strait
March 18, 1945–August 14, 1945

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Last Updated
June 29, 2025

 

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