What did Native Americans have that Europeans wanted even more than gold or silver?

As people began to move west they wanted the Native American lands, so the act made it official that the tribes were to be removed. From the very moment of the first colony the European settlers did their best to kill, remove, or displace the Native tribes from their lands. The government made treaties they broke and they forcibly removed people to reservations. The Union army would go into a sleeping village early in the morning and kill men, women, and children. The government policy was a " good Indian was a dead one" and they would do anything to accomplish this task. Read Black Elk Speaks or Bury My Heart at Wounded Knee for further understanding of the genocide that was committed.