Washington–Rochambeau Revolutionary Route

The Washington–Rochambeau Revolutionary Route is a 680-mile (1,090 km) series of roads used in 1781 by the Continental Army under the command of George Washington and the Expédition Particulière under the command of Jean-Baptiste de Rochambeau during their 14-week march from Newport, Rhode Island, to Yorktown, Virginia. French forces left Rhode Island in June 1781 and joined Washington's force on the Hudson River the following month.

Source: Wikipedia — Washington–Rochambeau Revolutionary Route (CC BY-SA 4.0)