How many years post-battle of Little Bighorn did the battle of wounded knee occur?

Brainliesttt asap!me : describe the responses to terrorism in the united states.

Wha industry did the refrigerated rail car impact the most

Why was the united states motivated to establish the open door policy? a. the policy guaranteed american commerce with china. b. the policy supported the chinese nationalist cause. c. the policy led to a gain of american colonies in asia. d. the policy claimed damages from the chinese.