On the morning of June 28, 1838, a group of armed Americans and disenchanted Canadians crossed the St. Clair River from Michigan and landed near Sombra. The raiders plundered the general store and stole flour and oats from the commissariat, then took two prisoners. Along with 17 volunteers of the Moore Militia, 7 local Chippewa warriors gave chase back across the river and landed on the American side. The American and Canadian militia captains negotiated. The Canadian militia volunteers and Chippewas returned and an international crisis was averted. The prisoners were freed and the stolen goods were returned. The American perpetrators of the invasion were arrested by American officials. Many of the Canadian rebels were later arrested in Canada. This was one of four armed incursions that constituted the St. Clair Raids in June, 1838. It occurred as one of the many incidents in Lower Canada and Upper Canada during the political struggle between the common settlers and the ruling elite known as the Rebellion of 1837-1838.