Meanwhile a reign of terror spread over the entire frontier. Settlements from Forts Le Bœuf and Venango, south of Lake Erie, to Green Bay, west of Lake Michigan, were attacked, and ruses similar to that attempted at Detroit were generally successful. A few Indians in friendly guise would approach a fort. After these were admitted, others would appear, as if quite by chance. Finally, when numbers were sufficient, the conspirators would draw their concealed weapons, strike down the garrison, and begin a general massacre of the helpless populace. Scores of pioneer families, scattered through the wilderness, were murdered and scalped; traders were waylaid in the forest solitudes; border towns were burned and plantations were devastated. In the Ohio Valley everything was lost except Fort Pitt, formerly Fort Duquesne; in the Northwest, everything was taken except Detroit. Fort Pitt was repeatedly endangered, and the most important engagement of the war was fought in its defense. The relief of the post was entrusted in midsummer to a force of five hundred regulars lately transferred from the West Indies to Pennsylvania and placed under the command of Colonel Henry Bouquet. The expedition advanced with all possible caution, but early in August, 1764, when it was yet twenty-five miles from its destination, it was set upon by a formidable Indian band at Bushy Run and threatened with a fate not unlike that suffered by Braddock's little army in the same region nine years earlier. Finding the woods full of redskins and all retreat cut off, the troops, drawn up in a circle around their horses and supplies, fired with such effect as they could upon the shadowy forms in the forest. No water was obtainable, and in a few hours thirst began to make the soldiery unmanageable. Realizing that the situation was desperate, Bouquet resorted to a ruse by ordering his men to fall back as if in retreat. The trick succeeded, and with yells of victory the Indians rushed from cover to seize the coveted provisions--only to be met by a deadly fire and put to utter rout. The news of the battle of Bushy Run spread rapidly through the frontier regions and proved very effective in discouraging further hostilities.