de 1945 até 1989, as questões geopoliticas se estruturam em função da oposição entre duas superpotências. essa ordem mundial significou?​

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".

cuba is a multi-ethnic nation