The two months of January and February were spent in inactivity in the Department of the Gulf, but frequent communications were held between the three generals whose forces were to take part in the movement. On the 1st of March Sherman came to New Orleans to confer with Banks, and it was then arranged that he should send 10,000 men under a good commander, who should meet Porter at the mouth of the Red River, ascend the Black, and strike a hard blow at Harrisonburg, if possible, and at all events be at Alexandria on the 17th of March. Banks on his part was to reach there at the same date, marching his army from Franklin by way of Opelousas, and to conduct his movement on Shreveport with such celerity as to enable the detachment from Sherman's corps to get back to the Mississippi in thirty days from the time they entered the Red River. General Steele was directed by Grant to move toward Shreveport from Little Rock, a step to which he was averse, and his movements seem to have had little, if any, effect upon the fortunes of the expedition. Having finished his business, Sherman went back at once, resisting the urgent invitation of General Banks, whose military duties seem to have been somewhat hampered by civil calls, to remain over the 4th of March and participate in the inauguration of a civil government for Louisiana, in which the Anvil Chorus was to be played by all the bands in the Army of the Gulf, the church bells rung, and cannons fired by electricity.

General Franklin, who was to command the army advancing from Franklin by Opelousas, did not receive his orders to move till the 10th, which was too late to reach Alexandria, one hundred and seventy-five miles away, by the 17th. Moreover, the troops which had been recalled from the Texas coast, leaving only garrisons at Brownsville and Matagorda, had just arrived at Berwick Bay and were without transportation; while the cavalry had not come up from New Orleans. The force got away on the 13th and 14th and reached Alexandria on the 25th and 26th.

Meanwhile, Sherman, having none but military duties to embarrass him, was in Vicksburg on the 6th, and at once issued his orders to General A.J. Smith, who was to command the corps detached up the Red river. On the 11th Smith was at the mouth of the River, where he met Porter, who had been there since the 2d, and had with him the following vessels: Essex, Commander Robert Townsend; Eastport, Lieutenant-Commander S.L. Phelps; Black Hawk, Lieutenant-Commander K.R. Breese; Lafayette, Lieutenant-Commander J.P. Foster; Benton, Lieutenant-Commander J.A. Greer; Louisville, Lieutenant-Commander E.K. Owen; Carondelet, Lieutenant-Commander J.G. Mitchell; Osage, Lieutenant-Commander T.O. Selfridge; Ouachita, Lieutenant-Commander Byron Wilson; Lexington, Lieutenant G.M. Bache; Chillicothe, Lieutenant S.P. Couthouy; Pittsburg, Lieutenant W.B. Hoel; Mound City, Lieutenant A.R. Langthorne; Neosho, Lieutenant Samuel Howard; Ozark, Lieutenant G.W. Browne; Fort Hindman, Lieutenant John Pearce; Cricket, Master H.H. Gorringe; Gazelle, Master Charles Thatcher.

Most of these vessels will be recognized as old acquaintances. The last three were light-draughts, the Cricket and Gazelle being but little over 200 tons. The Ouachita was a paddle-wheel steamer, carrying in broadside, on two docks, a numerous battery of howitzers, eighteen 24-pounders and sixteen 12-pounders (one of the latter being rifled); and besides these, five 30-pounder rifles as bow and stern guns. The Ozark, Osage, and Neosho, were ironclads of very light draught, having a single turret clad with 6-inch armor in which were mounted two XI-inch guns. They were moved by stern paddle-wheels covered with an iron house, of ¾-inch plates, which was higher than the turret, and from a broadside view looked like a gigantic beehive. The Essex did not go farther than the mouth of the river.

Early on the morning of March 12th the gunboats started up, the transports following. There was just enough water to allow the larger boats to pass. The transports, with the Benton, Pittsburg, Louisville, Mound City, Carondelet, Chillicothe, Ouachita, Lexington, and Gazelle turned off into the Atchafalaya, the admiral accompanying this part of his squadron; while Lieutenant-Commander Phelps with the other vessels continued up the Red River to remove obstructions, which the enemy had planted across the stream eight miles below Fort de Russy.

The army landed at Simmesport on the 13th, taking possession there of the camping-ground of the enemy, who retreated on Fort de Russy. The next day at daylight they were pursued, and Smith's corps, after a march of twenty-eight miles, in which it was delayed two hours to build a bridge, reached the fort in time to assault and take it before sundown. The Confederate General Walker had withdrawn the main body of his troops, leaving only 300 men, who could offer but slight resistance. Eight heavy guns and two field-pieces were taken.

The detachment of vessels under Lieutenant-Commander Phelps were at first delayed by the difficulty of piloting the Lafayette and Choctaw, long vessels of heavy draft, through the narrow and crooked river. The 13th thus wore away slowly, and on the 14th they reached the obstructions. Two rows of piles had been driven across the channel, braced, and tied together; immediately below them was a raft well secured to either bank and made of logs which did not float. Finally a great many trees had been cut and floated down upon the piles from above. The Fort Hindman removed a portion of the raft, and then the Eastport got to work on the piles, dragging out some and starting others by ramming. By four o'clock in the afternoon a large enough gap had been made, and the Eastport, followed by the Hindman, Osage, and Cricket, hastened up the river. Rapid artillery firing was heard as they drew near the works, but being ignorant of the position of the Union troops, few shots were fired for fear of injuring them. The slight engagement was ended by the surrender, a few moments after the boats came up. An order from the admiral to push on at once to Alexandria was delayed five hours in transmission. When it was received, the fastest vessels, the Ouachita and Lexington, were sent on, followed by the Eastport, but got there just as the last of the Confederate transports passed over the Falls. One of them grounded and was burnt.

These advance vessels reached Alexandria on the evening of the 15th, the admiral with the rest on the 16th; at which time there had also come up from 7,000 to 8,000 of Smith's corps, the remainder being left at Fort de Russy.

Alexandria was the highest point reached by the fleet the May before. Shreveport, the object of the present expedition, is three hundred and forty miles farther up the Red River. It was the principal dépôt of the Confederates west of the Mississippi, had some machine-shops and dockyards, and was fortified by a line of works of from two to three miles radius, commanding the opposite bank. Between the two places the river, which gets its name from the color of its water, flows through a fertile and populous country, the banks in many places being high, following in a very crooked channel a general southeasterly direction. In this portion of its course it has a width of seven hundred to eight hundred feet, and at low water a depth of four feet. The slope from Shreveport to Alexandria at high water is a little over a hundred feet, but immediately above the latter place there are two small rapids, called the Falls of Alexandria, which interrupt navigation when the water is low. The annual rise begins in the early winter, and from December to June the river is in fair boating condition for its usual traffic; but water enough for the gunboats and transports to pass the Falls could not be expected before the spring rise in March. The river, however, can never be confidently trusted. For twenty years before 1864 it had only once failed to rise, in 1855; but this year it was exceptionally backward, and so caused much embarrassment to the fleet.

General Banks came in on the 26th of March and the last of Franklin's corps on the 28th. Smith's command was then moved on to Bayou Rapides, twenty-one miles above Alexandria. The slow rise of the river was still detaining the vessels. There was water enough for the lighter draughts, but, as the enemy was reported to have some ironclad vessels not far above, the Admiral was unwilling to let them go up until one of the heavier gunboats had passed. The Eastport was therefore sent up first, being delayed two or three days on the rocks of the rapids, and at last hauled over by main force. She at once passed ahead of Smith's corps. The Mound City, Carondelet, Pittsburg, Louisville, Chillicothe, Ozark, Osage, Neosho, Lexington, and Hindman also went above the Falls, as did some thirty transports. At this time the Marine Brigade, which was now under the army and formed part of Smith's command, was summoned back to Vicksburg, taking 3,000 men from the expedition. The river continuing to rise slowly, it was thought best to keep two lines of transports, one above and one below the Falls, and to transship stores around them. This made it necessary to establish a garrison at Alexandria, which further reduced the force for the field.