I'll amend my statement then. The UN has no teeth against big players. The UN has done some things, but they tend to be with smaller nations without as much clo

I'll amend my statement then. The UN has no teeth against big players. The UN has done some things, but they tend to be with smaller nations without as much clout on the world stage. The UN, still has yet to really wrangle in the major powers on the world stage. The UN wasn't really effective in preventing US wars in the middle east (Afghanistan and Iraq), isn't really effective in the currently unresolved situation in Ukraine, nor is it effective in wrangling in China's territorial claims or their tensions with Taiwan. The US refuses to allow the UN's International Criminal Court to oversee war crimes committed by US troops, as I suspect the same is true for Russia. Or has it been effective in negotiation in the Israel-Palestine relationship. Nor, as a guess, will the UN do anything mention-able in easing China-US relations. It would be better to say, mutually assured destruction has probably done more to wrangle in world powers than the UN has. And the UN's structure is such that it ultimately will never really be able to reign in world powers.