...es at Baton Rouge and at New Orleans to hold those places; and then, aided and protected by the gunboat fleet, to cross Berwick Bay, and thence to march up the shores of the Bayou Teche and the Bayou Boeuf to Alexandria on the Red River, from thence returning down the Red River to the Mississippi, and to land north of Port Hudson, cut it off from communication with Vicksburg and from all succor; and th...