Today is United Nations day. 1945 brought about the close of WWII and the dawn of the United Nations. They hoped that such an alliance would prevent a war like that from ever happening again.
After WWI, a group called the League of Nations was born. Like the United Nations, its purpose was to stop wars on a global scale from starting in the first place. It would act as a sort of mediator, as nations would inevitably have disputes among one another. As time went on, it took responsibility toward condemning some things internal to a country as well–human trafficking, genocide, slavery–to name a few.
The League of Nations was still coming out of colonial rule, and so it did not effectively represent those who were under that kind of government. Half of the earth’s population was under colonial rule; for example, if you were an Algerian in 1931, you could forget about the attention of the League of Nations, you were still just a subject of the French government.
Another thing severely lacked by the League of Nations was the significant membership and participation from some major powers. These included the major players of WWII: Japan and Germany, and the USSR and the United States. And when the second world war did break out, it was determined that the League of Nations had failed in its purpose, as it wasn’t like the war just sprang out of nowhere. Invasions and strategic moves went right past them and they failed to act, which would mark the end of the League of Nations.