U.S. poised to extend Japan security umbrella into space

TOKYO — The U.S. is finalizing plans to extend its security umbrella for Japan into space, seeking to protect satellites crucial in military surveillance and operations, Nikkei has learned.

The expanded protection would be covered by Article 5 of the U.S.-Japan security treaty, which obligates Washington to defend Japan if territory under its administrative control is attacked. Japan’s satellites would be deemed as under such control.