...work on Williams's men; of the 3200 men that went up the river barely 800 came back fit for duty. Van Dorn at once prepared to assume the offensive. As the last of the fleet steamed away from Vicksburg , Breckinridge set out for Camp Moore with five thousand picked men. There he was to pick up the troops under Brigadier-General Daniel Ruggles, raising the whole force to six thousand, and promptly at...