According to Japan's Minister of Defense (who also seems to be in charge of Sci-Fi/Fantasy Affairs), the country's strictly pacifist constitution might provide some leeway if men in rubber suits or shitty action directors with Ferris Bueller in tow were to descend on Tokyo. “'If Godzilla attacked, that would probably be a natural disaster relief operation,'” making it legally permissible, he said."
The Washington Post unfortunately neglects to address how that Dick Cheney and David Addington were lighting each other's farts at the OEOB when things got a little out of hand. Oh, and they were farting on super-secret CIA tapes.