https://history.state.gov/milestones/1937-1945/american-isolationism
https://www.britannica.com/topic/isolationism-foreign-policy
http://depts.washington.edu/antiwar/WW1_reds.shtml
https://history.state.gov/milestones/1921-1936/great-depression
https://www.britannica.com/event/Monroe-Doctrine