In 1975, a steel fence was erected around the shrine and it was closed off to the public. This came after an incident on Hokkaidō a year earlier where a shrine was set on fire and after the chief priest at Yasukuni had received intelligence that unknown persons were planning to destroy the Chinreisha.
In 1975, a steel fence was erected around the shrine, effectively closing it off to the public. This action was taken in response to an incident on Hokkaidō a year prior where a shrine had been set ablaze and after the chief priest at Yasukuni received intelligence that unknown individuals were planning to destroy the Chinreisha.