The attack on Lachine represents a significant episode in a series of conflicts known as the Beaver Wars, where the Iroquois Confederacy sought to expand its influence and control over vital fur trade routes. Beginning in the early 17th century, these territorial disputes were characterized by escalating tensions between the Iroquois, who were engaging in trade alliances with the British, and the French, who were allied with various Algonquin tribes. In August of 1689, the Iroquois launched their most ambitious attack on Lachine, a small settlement established by the French in the early 1660s, which was strategically positioned near the waters of the St. Lawrence River.During this overwhelming assault, the well-organized Iroquois forces, estimated at around fifteen hundred warriors, sought to inflict maximum damage—targeting not only the homes of settlers but also disrupting the trade lines crucial for French colonial interests. The attack resulted in numerous fatalities and captured individuals, creating chaos among the French settlers and shaking their confidence in the safety of their outposts. The attack ultimately forced the French to reconsider their military strategies and diplomatic alliances within the region to contain Iroquois aggression.Lachine would face multiple attacks in subsequent years, and this particular encounter underscored the fraught relationship between the Iroquois and French settlers as well as their respective allies. The consequences of these battles would reverberate throughout the North American fur trade, changing the dynamics of power in the region and contributing to the decline of Iroquois influence in the late 17th and early 18th centuries as French and British colonial ambitions evolved.