Black Hawk remained in the village and was informed that peace was made between the Indigenous tribes and the Americans. Black Hawk learned the army was building a fort at Prairie du Chien. A party of British soldiers visited the Sauk and asked for their support as they had attacked the American fort. Black Hawk agreed. He gathered a party of warriors and joined the British.

Black Hawk’s group participated in an attack on an American boat and managed to capture it. However, when the Americans responded with more powerful weapons, the British retreated but urged the Sauk to prepare for the following day. The Sauk used a bigger weapon and fired against the American boats. They started for a battle ashore but saw the Americans building another fort. Black Hawk did not want a fort on the tribe’s hunting grounds.

Black Hawk and his men investigated the fort, shot a guard, and soon returned to the Sauk village. Black Hawk decided to not make war with the white people again, hoping they would not do anything against the Sauk.

As the British and the Americans made peace, the tribe thought the Sauk should also make peace with their rival tribes.