Analyze reasons for and goals of the united nations

The main reason it started back in 1945 was to stop another world war. It's predecessor the League of Nations had clearly failed, so whilst forming the UN they made up some new rules to make sure no country was punished so hard that another war would happen.

The UN we know keeps peace, Looks over the worlds children and fights for Human rights. Have a look at the website I have placed below, It's your World.