On the 13th of April, part of this force, under the rebel General Buford, summoned the garrison of Columbus, Kentucky, to surrender, but received for reply from Colonel Lawrence, 34th New Jersey Volunteers, that being placed there by his Government with adequate force to hold his post and repel all enemies from it, surrender was out of the question.

On the morning of the same day Forrest attacked Fort Pillow, Tennessee, garrisoned by a detachment of Tennessee cavalry and the 1st Regiment Alabama colored troops, commanded by Major Booth.  The garrison fought bravely until about three o’clock in the afternoon, when the enemy carried the works by assault; and, after our men threw down their arms, proceeded to an inhuman and merciless massacre of the garrison.

On the 14th, General Buford, having failed at Columbus, appeared before Paducah, but was again driven off.

Guerillas and raiders, seemingly emboldened by Forrest’s operations, were also very active in Kentucky.  The most noted of these was Morgan.  With a force of from two to three thousand cavalry, he entered the State through Pound Gap in the latter part of May.  On the 11th of June they attacked and captured Cynthiana, with its entire garrison.  On the 12th he was overtaken by General Burbridge, and completely routed with heavy loss, and was finally driven out of the State.  This notorious guerilla was afterwards surprised and killed near Greenville, Tennessee, and his command captured and dispersed by General Gillem.

In the absence of official reports of the commencement of the Red River expedition, except so far as relates to the movements of the troops sent by General Sherman under General A. J. Smith, I am unable to give the date of its starting.  The troops under General Smith, comprising two divisions of the 16th and a detachment of the 17th army corps, left Vicksburg on the 10th of March, and reached the designated point on Red River one day earlier than that appointed by General Banks.  The rebel forces at Fort de Russy, thinking to defeat him, left the fort on the 14th to give him battle in the open field; but, while occupying the enemy with skirmishing and demonstrations, Smith pushed forward to Fort de Russy, which had been left with a weak garrison, and captured it with its garrison about three hundred and fifty men, eleven pieces of artillery, and many small-arms.  Our loss was but slight.  On the 15th he pushed forward to Alexandria, which place he reached on the 18th.  On the 21st he had an engagement with the enemy at Henderson’s Hill, in which he defeated him, capturing two hundred and ten prisoners and four pieces of artillery.