Judicial review is where they determine if a law is unconstitutional or not. this affected the role of the supreme court because the judicial branch aka supreme court reviews the actions of the executive and legislative branches
It occurred chiefly due to the economic interventionism of the Japanese government and partly due to the aid and assistance of the U.S. aid to Asia. After World War II, the U.S. established a significant presence in Japan to slow the expansion of Soviet influence in the Pacific.