What social, economic, and political changes occurred after world war ii?

 The US entered WW2 during the great depression, but the war sent them into an economic production boom in the 50s and 60s and created many new jobs for the returning soldiers. This was the beginning of a lot of consumerism

The league of nations was found in 1919 to keep peace after world war l.but it failed to prevent world war ll in 1939,so in 1945 the nations of the world set up a new organization,the united state (un).since then, the un has encouraged international cooperation and worked to resolve conflict