Which of these had the most direct impact on the native americans of the great plains? a. the u. s. victory in the mexican-american war b. the hunting of the buffalo to near extinction during the 19th century c. the migration of emancipated slaves to the west during reconstruction d. the rise in immigration from southern and eastern europe at the end of the 19th century

D. the rise in immigration from southern and eastern europe at the end of the 19th century

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).

all of the