What is a puch factor?

Explanation:

basically poor conditions that drive people away from a place

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".

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others