What are the tree principals of the Japanese constitution?

The three principal pillars of the Japanese Constitution, adopted in 1947, are popular sovereignty, the renunciation of war, and the protection of fundamental human rights. Popular sovereignty emphasizes that the authority of the government derives from the people. The renunciation of war, articulated in Article 9, prohibits Japan from maintaining military forces for warfare. Lastly, the protection of fundamental human rights guarantees individual freedoms and equality before the law.