Members of parliament are supposed to be the most diplomatic folks. Always solving differences via dialog. But for issues they feel strongly about, differences can be resolved using violence and that's what exactly happened in Japanese parliament. They were voting for a bill that would allow Japan to use its military in defense of allies if there is no threat to Japan. One group wanted the bill to passed while another wanted to delay the voting. Since they couldn't agree, there was a fight but the bill was passed anyway.