There are several items that the West wanted from the national government, but the best options from the list would be "cheap land" and "publicly financed roads"
Diseases introduced by white settlers.
The main reason for the wipe-out of Native Americans was the threat of the diseases introduced by White Europeans. This ended up killing many Native Americans across different tribes, as they had no immunity to these diseases and had never dealt with these kinds of illnesses before. This was a rampant problem and attained the Native Americans quickly after the European settlers arrived.
They made posters and went around making promisses
