Additional Naval Armaments Supplement Programme

The Additional Naval Armaments Supplement Programme was one of the naval expansion plans of the Imperial Japanese Navy.

Background

In November 1941, the IJN required many additional submarines for the Pacific War, as a pressing matter. To meet this need, the IJN negotiated with the Ministry of Finance and received approval for 32 submarines and one target ship. Later, they were concluded by 78th, 79th and 81st Imperial Diet.