Thousands of people packed Nippon Budokan Hall in Tokyo on Tuesday in support of revising the pacifist Constitution while pledging to collect 10 million signatures favoring their cause.

The organizing group claimed 11,321 people attended the political rally at one of Japan's most prestigious halls, located in Chiyoda Ward.

The group, Utsukushii Nippon no Kempo wo Tsukuru Kokumin no Kai, (National Society to Create a Constitution for a Beautiful Japan), said it has already gathered signatures from 4.45 million people, including 422 Diet members, expressing their support for constitutional revisions of one kind or another.