佐世保鎮守府
With the start of World War I, from 20 January 1914, "Komahashi" was based at Sasebo Naval District, and was converted into a submarine tender on 23 May 1914. However, soon after, on 16 August 1914, she was re-classified as a 2nd class "kaibokan" and assigned to the 4th Torpedo Division.