Who was the fifth president of the u. s. that served from 1817-1825?

russia and the united states we're at a verbal war that was nuclear russia wanted more power and to take over more countries

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".