In crossing the Alleghanies, the English sought the Ohio and its tributaries--the Alleghany, the Monongahela, the Cumberland, the Tennessee, the Kanawha, the Big Sandy. The Ohio was long the chief gateway to the West. Upon this royal path into the wilderness, the Ohio Company sent Christopher Gist to prospect and report; for its possession, France and England came to final blows through the action at Fort Necessity of Major Washington, than whom no man knew the Ohio better; it was an approach to Kentucky more inviting than Boone's Wilderness Road, through Cumberland Gap; Clark's flotilla came swooping down the great river to conquer Kaskaskia and Vincennes; and, the Revolution ended, Rufus Putnam and his fellow veterans from New England claimed their military land grants along this continental highway, at Marietta. Cincinnati, also, was an outpost deliberately planted upon the great pathway to the West, although otherwise differing in genesis. It was by the Great Lakes, that other principal approach to the West, that Moses Cleaveland founded the settlement of Revolutionary soldiers who were redeeming their land warrants in New Connecticut, or the Western Reserve--an incident closely connecting Ohio with colonial history. Early in the Western experiences of the new nation, came Indian wars. These resulted in treaties whereunder the defeated tribesmen were either forbidden to enter defined areas of settlement, or were confined within specific reservations. This necessitated the construction of rude but effective frontier forts, which not unfrequently proved the nuclei of hamlets that grew into considerable towns. Sometimes these forts were essential to the direct protection of the white settlers, who, upon occasion of alarm, flew to cover within the log palisades, which were stout enough to resist a barbaric foe unpossessed of artillery; such was Fort Washington, which in time became Cincinnati. The forest trade was long the chief and only commercial interest in the West, and at certain points garrisoned forts were necessary to serve the traders as depôts and as havens of refuge; this was the part played by Detroit, Mackinac, Chicago, St. Paul, Vincennes, and St. Louis. In the case of Des Moines, the fort was established for the protection of a group of reservation Indians who might otherwise have fallen victims to a superior savage foe.