Conversation so far:
What is the incursion about for the British Band?
When Black Hawk's Band crossed the Mississippi River from Iowa in April 1832 to return to their homeland in the Rock River Valley, it was under a British flag.
Are there any other interesting aspects about the British Band article?
Observers at the time, from George Davenport, to St. Vrain, were certain that Black Hawk's intentions were to wage war against the United States.
Why was the leader of the British Band, Sauk leader Black Hawk, in opposition to the other settlers ?
Sauk warrior Black Hawk, leader of a band of Sauks near Rock Island at Saukenuk, was always in opposition to ceding Native American lands to white settlers and their governments.

Question: Why did black hawk support teh invalidity of the treaty of St. Louis?
Self-contained rewrite: Why did British Band leader, Sauk leader Black Hawk, support the invalidity of the Treaty of St. Louis?