Can someone translate this speech to its meaning?

Kimberly M asked:


What main concerns are in the speech, whats its intentions , what can we learn from this message today
The following is an excerpt from President Benjamin Harrison’s annual message, delivered December 9, 1891, in which he describes the Wounded Knee Massacre and the progress of the program to decrease Native American land acreage.*

The outbreak among the Sioux which occurred in December last is as to its causes and incidents fully reported upon by the War Department and the Department of the Interior. That these Indians had some just complaints, especially in the matter of the reduction of the appropriation for rations and in the delays attending the enactment of laws to enable the Department to perform the engagements entered into with them, is probably true; but the Sioux tribes are naturally warlike and turbulent, and their warriors were excited by their medicine man and chiefs, who preached the coming of an Indian messiah who was to give them power to destroy their enemies. In view of the alarm that prevailed among the white settlers near the reservation and of the fatal consequences that would have resulted from an Indian incursion, I placed at the disposal of General Miles, commanding the Division of the Missouri, all such forces as we thought by him to be required. He is entitled to the credit of having given thorough protection to the settlers and of bringing the hostiles into subjection with the least possible loss of life. . . .
Since March 4, 1889, about 23,000,000 acres have been separated from Indian reservations and added to the public domain for the use of those who desired to secure free homes under our beneficent laws. It is difficult to estimate the increase of wealth which will result from the conversion of these waste lands into farms, but it is more difficult to estimate the betterment which will result to the families that have found renewed hope and courage in the ownership of a home and the assurance of a comfortable subsistence under free and healthful conditions. It is also gratifying to be able to feel, as we may, that this work has proceeded upon lines of justice toward the Indian, and that he may now, if he will, secure to himself the good influences of a settled habitation, the fruits of industry, and the security of citizenship.
It isn’t clear to me of what the speech is about, I don’t need it “Translated” I just need it explained of what he is talking about and his meaning of the speech.

Alida Vinall