The period between the Battle of Stillman's Run in May and the raid at Sinsinawa Mound in late June was filled with war-related activity. A series of attacks at Buffalo Grove, the Plum River settlement, Fort Blue Mounds, and the war's most famous incident, the Indian Creek massacre, all took place between mid-May and late June 1832. Two key battles, one at Horseshoe Bend on June 16 and the other at Waddams Grove on June 18, played a role in changing public perception about the militia after its defeat at Stillman's Run. The Battle of Apple River Fort on June 24 marked the end of a week that was an important turning point for the settlers. The fight was a 45-minute gun battle between defenders garrisoned inside Apple River Fort and Sauk and Fox warriors led by Chief Black Hawk.