In 1919 League of Nation, Japan proposed end of colonization and in 1919 put forwad “The Racial Equality Proposal” at the Paris Peace Conference and won majority of vote. “The chairman, President Wilson(USA), overturned it, saying that although the proposal had been approved by a clear majority, that in this particular matter, strong opposition had manifested itself, and that on this issue a unanimous vote would be required. “ https://en.wikipedia.org/wiki/Racial_Equality_Proposal
Japan strongly believe in rule of law and this farce of someone can ignore rule and can make arbitrary ruling made Japan quit League of Nation.
United Nation was later formed by Allies and had secrity counsel with veto power. It is still somewhat lame, but at least there’s rule.