The UN has absolutely failed in maintaining peace in many places all around the world, there are ethnic conflicts in many parts of the world but the UN has failed in taken action towards this issue. Their action towards armed forces abuse have not been so effective. And also no human or organisation is perfect so they have certainly failed sometimes,but should learn to improve.
The UN gives too much power to nations like the US and China. These nations have the power to veto out other nations in security issues. Since the 5 nations having the permanent seat on the security council mostly cause these wars, they can veto out any decisions against them.
I support the argument that some people say that the Un hasn't failed but the Un has failed badly on politics , why do i say this , this is because when one country said that they wanted to do something , once the other country says no everything can't be taken out so I do not support that the UN has success.
The UN has absolutely not failed. They have resolved many international conflicts throughout the years and definitely have avoided world war three on multiple occasions. They have made strides towards world peace and overall made the world a much better and safer place to live in. The UN has done so much good in so little time.
No, I do not believe that the United Nations has failed. They may have taken a step backwards in recent times, but with any hardship can arise great bonds. I wouldn't particularly say that they have failed until they have actually failed because I am certainly an optimist and would not want to say otherwise.