After a bombardment of several days, another assault on Port Hudson was made on the above date. General Banks deemed it necessary on this occasion to change the position of his troops, and they now formed a right and left wing, without the customary centre, and were joined in the form of a right angle. The division of General Grover, on the upper side of Port Hudson, extended a distance of nearly four miles from the river, toward the interior, within supporting distance of General Augur’s division, which was on the west side of the fortifications, and extended a distance of three miles to the river, within hailing distance of the fleet. The defences of the enemy formed nearly a right angle, both lines of which extended to the river, and enclosed a sharp bend. The point of attack was the extreme northeastern angle of the enemy’s position.

Several of their pieces had been dismounted at this point by the incessant bombardment of the previous days, while the Federal sharpshooters were able to render dangerous any attempt to work the artillery in position. Two regiments of sharpshooters were detailed to creep up to and lie on the exterior slope of the enemy’s breastworks, while another regiment, each soldier having a hand-grenade besides his musket, followed. Another regiment followed with bags filled with cotton, which were to be used to fill up the ditch in front of the breastworks. The remaining regiments of General Weitzel’s brigade succeeded, supported by the brigades of Colonel Kimball and Colonel Morgan. These forces, all under General Weitzel, constituted the right of attack.

On the left General Paine’s division constituted a separate column. The whole command was under General Grover, who planned the attack.

It was expected that General Weitzel’s command would make a lodgment within the enemy’s works, and thus prepare the way for General Paine’s division.

The advance was made about daylight, through a covered way, to within three hundred yards of the enemy’s position; then their progress was retarded by deep gulleys, covered with bush and creeping vines. Under an incessant fire from the enemy, a part of the skirmishers reached the ditch, where they were met with an enfilading fire, and hurled back, while their hand-grenades were caught up by the enemy and thrown back again into the Union ranks. The assaulting column moved on as rapidly as possible, and made several gallant and desperate attempts on the enemy’s works, but found them fully prepared at all points, and every part of their fortifications lined with dense masses of infantry. At length the assaulting columns were compelled to fall back under the deadly fire of the enemy, and the fighting finally ceased at eleven o’clock in the morning. General Banks’s loss was nearly seven hundred in killed and wounded.

Meantime the first parallel encircling the outer line of the rebel defences was pushed forward, and the skirmishers were posted in rifle-pits so near that skirmishes were of constant occurrence at night.

The withdrawal of General Banks’s force from the west side of the Mississippi was followed by great activity on the part of the enemy, for the purpose of recovering the places held by small bodies of Federal troops, and to cause a diversion from Port Hudson. Opelousas was reoccupied by a considerable Confederate force; and the west bank of the Mississippi was lined with squads of the rebels, who fired on every boat which passed. On the 17th of June, an attack was made on the Federal pickets at La Fourche, which was repulsed. On the 23d, Brashear City was captured by a Confederate force under Generals Green and Morton. A camp of contrabands was attacked by the enemy, and large numbers killed. Immense quantities of ammunition, several pieces of artillery, three hundred thousand dollars’ worth of sutler’s goods, sugar, flour, pork, beef, and medical stores, of vast amount, were also captured. On the 28th, an attack was made on Donaldsonville, and the storming party succeeded in getting into the fort. But the gunboats opened a flanking fire above and below the fort, and drove back the supporting party, so that the enemy broke and fled. Of those who had entered the fort, one hundred and twenty were captured and nearly one hundred killed.

Other movements on the part of the enemy were made at this time, which indicated great activity, and enabled them to destroy much Federal property. No embarrassment however was caused to the position of General Banks. The enemy, in short, recovered the La Fourche, Teche, Attakapas, and Opelousas country, and captured Brashear, with fifteen hundred prisoners, a large number of slaves, and nearly all the confiscated cotton.

After the two attempts to reduce Port Hudson by a land assault, on the 27th of May and the 14th of June, the purpose to make another was given up General Banks, until he had fully invested the place by a series of irresistible approaches. He was thus engaged in pushing forward his works when Vicksburg was surrendered. Information of this surrender was sent to General Banks, and it was the occasion for firing salutes and a general excitement in his camp, which attracted the attention of the enemy, to whom the surrender was communicated. General Gardner, upon receiving the information, sent by flag of truce, about midnight of the 7th, the following note to General Banks:

“General: Having received information from your troops that Vicksburg has been surrendered, I make this communication to request you to give me the official assurance whether this is true or not, and if true, I ask for a cessation of hostilities, with a view to the consideration of terms for surrendering this position.

To which General Banks thus replied

“General: In reply to your communication, dated the 7th instant, by flag of truce, received a few moments since, I have the honor to inform you that I received, yesterday morning, July 7th, at 10.45, by the gunboat General Price, an official despatch from Major-General Ulysses S. Grant, United States Army, whereof the following is a true extract:

“‘General: The garrison of Vicksburg surrendered this morning. The number of prisoners, as given by the officer, is twenty-seven thousand, field artillery one hundred and twenty-eight pieces, and a large number of siege guns, probably not less than eighty.

“I regret to say, that under present circumstances, I cannot, consistently with my duty, consent to a cessation of hostilities for the purpose you indicate.

The following further correspondence then took place:

“General: I have the honor to acknowledge the receipt of your communication of this date, giving a copy of an official communication from Major-General U. S. Grant, United States Army, announcing the surrender of Vicksburg.

“Having defended this position as long as I deem my duty requires, I am willing to surrender to you, and will appoint a commission of three officers to meet a similar commission appointed by yourself, at nine o’clock this morning, for the purpose of agreeing upon and drawing up the terms of the surrender, and for that purpose I ask for a cessation of hostilities.

“Will you please to designate a point outside of my breastworks, where the meeting shall be held for this purpose?

“To Major-General Frank Gardner, commanding Confederate States forces, Port Hudson:

“General: I have the honor to acknowledge the receipt of your communication of this date, stating that you are willing to surrender the garrison under your command to the forces under my command, and that you will appoint a commission of three officers to meet a similar commission appointed by me, at nine o’clock this morning, for the purpose of agreeing upon and drawing up the terms of the surrender.

“In reply, I have the honor to state that I have designated Brigadier-General Charles P. Stone, Colonel Henry W. Birge, and Lieutenant-Colonel Richard B. Irwin, as the officers to meet the commission appointed by you.

“They will meet your officers at the hour designated, at a point where the flag of truce was received this morning. I will direct that active hostilities shall entirely cease on my part until further notice, for the purpose stated.

The following are the articles of capitulation mutually agreed upon and adopted:

Art. 1. Major-General Frank Gardner surrenders to the United States forces under Major-General Banks, the place of Port Hudson and its dependencies, with its garrison, armaments, munitions, public funds, and materials of war, in the condition, as nearly as may be, in which they were at the hour of cessation of hostilities, namely, 6 o’clock A. M., July 8, 1863.

Art. 2. The surrender stipulated in article one is qualified by no condition, save that the officers and enlisted men comprising the garrison shall receive the treatment due to prisoners of war, according to the usages of civilized warfare.

Art. 3. All private property of officers and enlisted men shall be respected, and left to their respective owners.

Art. 4. The position of Port Hudson shall be occupied to-morrow, at 7 o’clock A. M., by the forces of the United States, and its garrison received as prisoners of war by such general officers of the United States service as may be designated by Major-General Banks, with the ordinary formalities of rendition. The Confederate troops will be drawn up in line, officers in their positions, the right of the line resting on the edge of the prairie south of the railroad depot; the left extending in the direction of the village of Port Hudson. The arms and colors will be piled conveniently, and will be received by the officers of the United States.

Art. 5. The sick and wounded of the garrison will be cared for by the authorities of the United States, assisted if desired by either party, by the medical officers of the garrison.

The formal surrender was made on the 9th of July. General Andrews, Chief-of-Staff of General Banks, with Colonel Birge leading his column, followed by two picked regiments from each division, with Holcombe’s and Rowle’s batteries of light artillery, and the gunners of the naval battery, entered the fortifications. The enemy were drawn up in line, with their officers in front of them, on one side of the road, with their backs to the river. The Federal troops were drawn up in two lines on the opposite side of the road, with their officers in front of them. General Gardner then advanced, and offered to surrender his sword with Port Hudson. In appreciation of his bravery, he was desired to retain it. He then said: “General, I will now formally surrender my command to you, and for that purpose will give the order to ground arms.” The order was given, and the arms grounded. The surrender comprised, besides the position, more than six thousand two hundred and thirty-three prisoners, fifty-one pieces of artillery, two steamers, four thousand four hundred pounds of canon powder, five thousand small arms, and one hundred and fifty thousand rounds of ammunition. The loss of General Banks from the twenty-third to the thirtieth of May was about one thousand. The village of Port Hudson consisted of a few houses and a small church, which had been nearly destroyed by the cannonade. The wounded and sick of the garrison suffered most from want of medical stores. The provisions of the garrison were nearly exhausted.

A short period of inactivity succeeded the heavy campaign of General Banks’s army, which culminated in the capture of Port Hudson, on the 9th of July, 1863. But the plans of the commanding officers were maturing for new expeditions, in more remote regions, where the flag of rebellion was still floating defiantly, and where the machinations of European powers were striving covertly to give aid to the Confederate cause, and to establish an unfriendly Government on the Federal confines, if not on American soil.

Rear-Admiral David D. Porter arrived at New Orleans on the 1st of August, 1863, and resumed command of the gunboats on the Mississippi. About the same time Major-General Franklin, formerly a corps commander in the Army of the Potomac, arrived at the same place, and reported for duty.

A naval expedition to the mouth of the Sabine river, in Texas, was undertaken by General Banks, who dispatched General Franklin with four thousand men in four army transports, to capture the forts at Sabine Pass, at the mouth of the river, which forms the boundary line between Texas and Louisiana. The armed steamers employed were the Clifton, Sachem, Arizona, and Granite City, and the naval forces were commanded by Lieutenant Crocker.

Early on the morning of September 8th, the Clifton stood in the bay and opened on the fort, to which no reply was made. At 9 A. M. the Sachem, Arizona, and Granite City, followed by the transports, stood over the bar, and, with much difficulty, owing to the low water, reached an anchorage about two miles from the fort at 11 A. M. About the middle of the afternoon the Sachem, followed by the Arizona, advanced up the eastern channel to draw the fire of the forts, while the Clifton advanced up the western channel. The Granite City remained to cover the landing of a division of troops under General Weitzel. No reply was made to the fire of the gunboats until they were abreast of the forts, when eight guns opened fire upon them. Three of these were rifled. Almost at the same moment the Clifton and Sachem were struck in their boilers and both vessels enveloped in steam. The Arizona, not having room to pass the Sachem, then backed down the channel until she grounded by the stern, when the ebb-tide caught her bows and swung her across the channel. White flags were raised on the Clifton and Sachem, and within twenty minutes they were taken in tow by the enemy. The naval force of the expedition being thus disabled, the transports moved out of the bay. The Arizona was got afloat during the night, and followed. The expedition then returned to Brashear City. The officers and crews of the Clifton and Sachem, and about ninety sharpshooters who were on board were captured, and the loss in killed and wounded was about thirty. After remaining at Brashear City some time, the military force moved to Franklin and Vermillionville.

On the 27th of October an expedition under General Banks put to sea from New Orleans. It consisted of about twenty vessels, accompanied by the gunboats Owasco, Virginia, and Monongahela, which sailed to the mouth of the Rio Grande river, the boundary between Texas and Mexico. Brownsville was occupied by Federal troops, which did much to check the designs of the French Emperor. An American army was now placed on the frontier, prepared to check any open demonstration of sympathy between the armies of Davis and Napoleon.

Western Louisiana was again the scene of military operations in the Teche district, where General Washburn’s command was attacked on the 5th of November, and after a severe struggle, he succeeded in beating off the enemy with a loss of one hundred killed and two hundred prisoners. The Federal loss was forty killed.