The supreme law of Japan since 1947, born in the post-war reform era.
Japan has revised imperial succession laws, allowing distant male relatives raised as commoners to join the royal line through male-only lineage. Princess Aiko remains excluded from succession. Critics warn of a new class structure and constitutional questions as the government pushes male-only succession.
Japan has established the National Disaster Management Agency to coordinate preparedness, emergency response, and reconstruction. Officials say the move will address megaquake risks along the Nankai Trough and in Tokyo, improve evacuation centers, and boost cross-ministry coordination.