In his description of the United States Army’s plan “to capture and herd all the Lakota onto reservations once and for all”

In his description of the United States Army’s plan “to capture and herd all the Lakota onto reservations once and for all” toward the end of the fourth paragraph, the author’s tone conveys which of the following?

Answer: Disapproval of the Army’s dehumanizing treatment of the Lakota