What were Prince Maximillian's motivations for going on the expedition up the Missouri River? What was Karl Bodmer's job on the expedition and why did Prince Maximillian hire him?

Prince Maximilian was an enlightened man with a restless spirit. He devised expeditions of a scientific, botanical, zoological, ethnographic and anthropological nature.  

Johann Karl Bodmer was hired as an artist by Maximilian to accompany his expedition and record images of cities, rivers, towns, and villages he saw along the way, including the many Native American tribes along the Missouri River and in that region.

Bodmer was a Swiss printmaker, engraver, lithographer, zinc engraver, draftsman, painter, illustrator and hunter. He is known in the United States as a painter who captured the American West in the 19th century. He painted extremely precise works of its inhabitants and landscape. He accompanied the German explorer Prince Maximilian zu Wied-Neuwied from 1832 to 1834 on his expedition to the Missouri River.  

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.