During a great part of 1863, Tennessee and Kentucky, beyond the lines of the Union army, were a prey not only to raids by detached bodies of the enemy's army, but also to the operations of guerillas and light irregular forces. The ruling feeling of the country favored the Confederate cause, so that every hamlet and farm-house gave a refuge to these marauders, while at the same time the known existence of some Union feeling made it hard for officers to judge, in all cases, whether punishment should fall on the places where the attacks were made. The country between the Cumberland and Tennessee Rivers early in the year harbored many of these irregular bodies, having a certain loose organization and a number of field-pieces. The distance between the two streams in the lower part of their course being small, they were able to move from the banks of one to the other with ease. It was necessary, therefore, to keep these rivers patrolled by a force of gunboats; which, though forming part of Porter's fleet, were under the immediate orders of Captain Alexander M. Pennock, commanding the naval station at Cairo. West of the rivers, between them and the great river, the western parts of Kentucky and Tennessee and the northern part of Mississippi were under control of the Union troops, though inroads of guerillas were not unknown. Nashville was held by the Union forces; but the Confederates were not far away at Shelbyville and Tullahoma. The fights between the gunboats and the hostile parties on these rivers do not individually possess much importance, but have an interest in showing the unending and essential work performed by the navy in keeping the communications open, aiding isolated garrisons, and checking the growth of the guerilla war. On the 30th of January Lieutenant-Commander S.L. Phelps, having been sent by Captain Pennock in the Lexington to make a special examination of the condition of affairs on the Cumberland River, reported that, a transport having been fired upon twenty miles above Clarksville, he had landed and burned a storehouse used as a resort by the enemy. As he returned the vessel was attacked with some Parrott rifles and struck three times; but the heavy guns of the Lexington drove the enemy off. Going down to Clarksville he met there a fleet of thirty-one steamers, having many barges in tow, convoyed by three light-draught gunboats. These he joined, and the enemy having tested the power of the Lexington, did not fire a shot between Clarksville and Nashville. As a result of his enquiries he thought that no transport should be allowed to go without convoy higher than Fort Henry or Donelson, situated on either river on the line separating Kentucky and Tennessee. The Lexington was therefore detained, and for a time added to the flotilla on those rivers.