I am 95% sure it is the geography and climate of the area where they settled. If you take a look at different native groups, you’ll see that the most prominent factors are their farming/hunting and housing styles, both affected mainly by the climate and geography surrounding them.
B,TRUST ME! HAVE AN AMAZING DAYYYY!
After France surrendered to Germany in June 1940 two members of congress introduced the "Selective Service and Training Act," since it became clear to many that the US would likely have to join the war.