Japanese Ryojun Guard District

The Imperial Navy established guard districts in the outer portions of the Japanese Empire.  These were similar to the Sea Frontiers of the U.S. Navy. The Ryojun Guard District had responsibility for the Manchurian coast and the Kwantung Peninsula.

Administrative order of battle, 7 December 1941:

Ryojun Guard District (Ukita; at Port Arthur)
  Minesweeper Division 32

  AMc Shanan Maru #16


Prados (1995) (accessed 2002; now defunct)

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