How did geography assist europeans in their drive to colonize the americas? a. europeans were able to use the horse, which was at that point unavailable in the americas. b. europeans had access to obsidian. c. native americans introduced europeans to gunpowder. d. europeans needed armor in the colder weather of europe.

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.