The 2nd Naval Armaments Supplement Programme otherwise known as the "Circle Two" Plan was the second of four expansion plans of the Imperial Japanese Navy between 1930 and the start of World War II.
Construction of the cruiser Tone was authorized under the "Circle-2 Plan"
Shiratsuyu-class destroyer
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The Shiratsuyu-class destroyers were a class of ten 1st Class destroyers of the Imperial Japanese Navy in service before and during World War II, during which all ten were sunk.
Yamakaze