...ited States bark Restless, Lieut. Edward Conroy commanding. This morning at four o'clock a train of one hundred wagons, with commissary stores, was intercepted by the rebels between Fairfax and Centreville, Va. , and driven off toward Manassas before the party could be overtaken. They secured the entire train. So soon as this raid in the rear of the National army at Centreville was known, the necessity o...