In 1683, Governor Joseph-Antoine de La Barre ordered Daniel Greysolon, Sieur du Lhut and Olivier Morel de La Durantaye to establish a strategic presence on the north shore of the Straits of Mackinac, which connected Lake Michigan and Lake Huron of the Great Lakes. They fortified the Jesuit mission at St. Ignace and La Durantaye settled in as overall commander of the French forts in the northwest: Fort Saint Louis des Illinois (Utica, Illinois); Fort Kaministigoya (Thunder Bay, Ontario); and Fort la Tourette (Lake Nipigon, Ontario). He was also responsible for the region around Green Bay in present-day Wisconsin. In the spring of 1684, La Durantaye led a relief expedition from Saint Ignace to Fort Saint Louis des Illinois, which had been besieged by the Seneca (part of the Iroquois Confederacy) as part of the Beaver Wars; they sought to gain more hunting grounds in order to control the lucrative fur trade. That summer and again in 1687, La Durantaye led coureurs de bois and Indians from the Straits against the Seneca homeland in the territory of western upper New York state. During these years, English traders from New York penetrated the Great Lakes and also traded at Michilimackinac. This, and the outbreak of war between England and France in 1689, led to the new commandant Louis de La Porte de Louvigny directing construction of Fort de Buade in 1690.