...ousand two hundred or one thousand five hundred cavalry and mounted infantry, attacked Colonel Siebert, and captured a supply-train from Chattanooga, for Knoxville, about ten o'clock this morning, at Charlestown , on the south bank of the Hiawassee. The train escort had reached the encampment at Charlestown last night, and Colonel Siebert's skirmishers hotly engaged with the enemy this morning before Colo...