Why was there tension between the united states and the ussr after world war ll

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".

darwinism is survival of the fittest there for social darwinism is the survival of the wealthiest