Treaty of July 5, 1825
On July 5, 1825, the United States, represented by Brigadier-General Henry Atkinson and Major Benjamin O’Fallon, entered into a treaty with the Sioune and Ogallala bands of the Sioux Indians. This agreement aimed to solidify friendship and regulate trade, acknowledging U.S. supremacy and protection. It outlined provisions for fair trade, cooperation in legal matters, and the prohibition of arms supply to unfriendly tribes. The treaty emphasized mutual respect, lawful interactions, and peacekeeping, establishing a framework for relations between the U.S. and the Sioux.