I don’t answer what ur trying to say i’m sorry
It took only 77 years. I am counting from the independence in 1776 until the Gadsden Purchase in 1853. (the last purchase was small and the continental US had almost it's present size in 1848 with Mexican Cession.
Kennan is credited with writing an anonymous article about the Soviet expansion plans that was influential in the creation of the Truman Doctrine
