Three reasons the united states was able to assert itself on world stage after ww2

The main reason why the United states was able to assert itself on world stage after World War II was that it emerged from the war an economic superpower due mostly to government war spending. Another reason was that Britain had lost a great deal of its empire during the war, leaning to a "void" to be filled. Another was the United States was one of the Allies who had won the war. 

The one that considered as a direct result of the presidential committee on civil rights’