The Sioux agreed to settle within a reservation in Black Hills of the Dakota territory in exchange for peace.
Answer:
The Texas settlers wanted to overthrow Santa Anna, so that they can restore the power of the Mexican states.
Explanation:
Washington and the first congress had to make numerous decisions about the new government, since there was no precedent--such as how to establish a cabinet, how the present would be greeted, whether the president would be present during sessions of congress, etc,
Basically, before 1973, the president had more power over the military and had more freedom to command the military as the president wished. This was seen in Vietnam which turned out to be a disaster. It was decided to limit the president's military power, and he would need the consent of congress to whatever operation he planned to do.
summary: limit president's military power