As we know in class the 5 countries that has the power of veto are United States, United Kingdom, France, China and Russia, but we didn't saw how they got so precious power. They got this power first of all are some of the best economies of the world, and the history that every country has made them more powerful.
If one of them doesn't want to agree with one trade or if they don't want to vote for a new rule or something like that, the rule or trade won't be established, because the 5 countries have to be in favor to the trade.
this five countries have the best communication with other countries, because they have good economy, political and military power.