The constitution of the Empire of Japan the Article 5 said that the Emperor acts the legislative power with a support of Imperial Diet, and the Article 64, Provision 1 said that the state annual expenditure and revenue was committed by a support of Imperial Diet with annual budget, so that the budget for the organization and maintenance of the army should have been decided by Imperial Diet, however, as Supreme Command Staff could make comments on military affairs to the Emperor with full responsibility of the results without confirmation of the Cabinet, (Iaku-joso) the idea that the Minister of State (Cabinet) would not be necessary for the process occupied in general.
大日本帝国憲法第5条天皇は帝国議会の協賛を以て立法権を行ふ、大日本帝国憲法第64条第1項国家の歳出歳入は毎年予算を以て帝国議会の協賛を経へしにより、軍の編成･維持のための予算は議会が決定する物であるが、統帥部は、軍事に関する情報を内閣に通さず天皇に報告（帷幄上奏）できたため、国務大臣（内閣）が関わる必要がないと言う考えが大勢を占めた。