Kokutai

The nationalistic essence of kokutai is thought of as the uniqueness of the Japanese polity as issuing from a leader of divine origin.[1]

Kokutai (国体, "national body/structure of state") is a concept in the Japanese language translatable as "system of government", "sovereignty", "national identity, essence and character", "national polity; body politic; national entity; basis for the Emperor's sovereignty; Japanese constitution" or nation.