TIL: Today I Learned...

Interestingly enough, if i recall correctly, they did that because of the agreement they had with other Axis countries where the US formally declared war on Japan after Pearl Harbor, and Germany/Italy essentially had to declare war on the US in response.
Which means that all other wars; Korea, Vietnam, Afghanistan/Iraq, have no source of funding since the US cannot issue war bonds or raise taxes unless war is declared. As a result, our legislators robbed Peter (us) to pay Paul (The military industrial complex)