French victories over George Washington and Edward Braddock in 1754–55 wrested from Britain control of the strategic forks of the Ohio River (modern Pittsburgh). By 1758, General John Forbes was assigned the daunting task of seizing Fort Duquesne, the French citadel at the forks. He ordered construction of a new road across Pennsylvania, guarded by a chain of fortifications, the final link being the “Post at Loyalhanna,” fifty miles from his objective.[3]

      The fort was constructed in September 1758. By late October, George Washington had arrived at Loyalhanna, but not before the defeat of a British force at Fort Duquesne on September 14, and the successful defense of Loyalhanna from a French attack on October 12. Heavily outnumbered and losers in Indian diplomacy, the French abandoned Fort Duquesne, which Forbes occupied on November 25. He designated the site “Pittsburgh” in honor of Secretary of State William Pitt. Forbes also named Loyalhanna “Fort Ligonier” after his superior, Sir John Ligonier, commander-in-chief in Great Britain