...heavy forces were massing at Cairo under Grant, C. F. Smith and McClernand, to attack Donelson and Henry. This movement, if successful, would lay open the road to Nashville, force the evacuation of Bowling Green and Columbus, and isolate and risk the loss of. Memphis. On the 19th of January the first shock of arms was felt, on the left flank, at Fishing Creek, where the Confederate General George B. Critte...