After the destruction of the Philadelphia frigate, commodore Preble was, during the spring and early part of the summer, employed in keeping up the blockade of the harbor of Tripoli, in preparing for an attack upon the town and in cruising. A prize that had been taken was put in commission, and called the Scourge. A loan of six gun-boats and two bomb-vessels, completely fitted for service, was obtained from the king of Naples. Permission was also given to take twelve or fifteen Neapolitans on board each boat, to serve under the American flag.

With this addition to his force, the commodore on the 21st of July, joined the vessels off Tripoli. The number of men engaged in the service amounted to one thousand and sixty.

On the Tripolitan castle and batteries, one hundred and fifteen guns were mounted, fifty-five of which were pieces of heavy ordnance, the others long eighteen and twelve pounders. In the harbor were nineteen gun-boats carrying each a long brass eighteen or twenty-four pounder in the bow, and two howitzers abaft; also two schooners of eight guns each, a brig of ten and two galleys of four guns each. In addition to the ordinary Turkish garrison, and the crews of the armed vessels, estimated at three thousand, upwards of twenty thousand Arabs had been assembled for the defence of the city.

The weather prevented the squadron from approaching the city until the twenty-eighth, when it anchored within two miles and a half of the fortifications; but the wind suddenly shifting, and increasing to a gale, the commodore was compelled to return. On the 3d of August, he again approached to within two or three miles of the batteries. Having observed that several of the enemy’s boats were stationed without the reef of rocks, covering the entrance, he made signal for the squadron to come within speaking distance, to communicate to the several commanders his intention of attacking the shipping and batteries. The gun-boats and bomb-ketches were immediately manned and prepared for action. The former were arranged in two divisions of three each. At half past one the squadron stood in for the batteries. At two, the gun-boats were cast off. At half past two, signal was made for the bomb-ketches and gun-boats to advance and attack.—At three quarters past two, the signal was given for a general action. It commenced by the bomb-ketches throwing shells into the town. A tremendous fire immediately commenced from the enemy’s batteries and vessels, of at least two hundred guns. It was immediately returned by the American squadron, now within musket shot of the principal batteries.

At this moment, Captain Decater, with the three gun-boats under his command, attacked the enemy’s eastern division, consisting of nine gun-boats. He was soon in the midst of them. The fire of the cannon and musketry was immediately changed to a desperate attack with bayonet, spear and sabre. Captain Decater having grappled a Tripolitan boat, and boarded her with only fifteen Americans, in ten minutes her decks were cleared and she was captured. Three Americans were wounded. At this moment captain Decater was informed that the gun-boat commanded by his brother, had engaged and captured a boat belonging to the enemy; but that his brother, as he stepped on board was treacherously shot by the Tripolitan commander, who made off with his boat. Captain Decater immediately pursued the murderer, who was retreating within the lines; having succeeded in coming alongside, he boarded with only eleven men. A doubtful contest of twenty minutes ensued. Decater immediately attacked the Tripolitan commander, who was armed with a spear and cutlass. In parrying the Turk’s spear, Decater broke his sword close to the hilt, and received a slight wound in the right arm and breast; but having seized the spear he closed; and, after a violent struggle, both fell, Decater uppermost. The Turk then drew a dagger from his belt, but Decater caught his arm, drew a pistol from his pocket and shot him. While they were struggling, the crew of both vessels rushed to the assistance of their commanders. And so desperate had the contest around them been, that it was with difficulty that Decater extricated himself from the killed and wounded that had fallen around him.

In this affair an American manifested the most heroic courage and attachment to his commander. Decater, in the struggle, was attacked in the rear by a Tripolitan, who had aimed a blow at his head, which must have proved fatal, had not this generous minded tar, then dangerously wounded and deprived of the use of both his hands, rushed between him and the sabre, the stroke of which he received in his head whereby the scull was fractured. This hero, however, survived, and afterwards received a pension from his grateful country. All the Americans but four were wounded. Captain Decater brought both of his prizes safe to the American squadron.

Two successive attacks were afterwards made upon Tripoli; and the batteries effectually silenced. The humiliation of this barbarous power was of advantage to all nations.—The Pope made a public declaration, that, “the United States, though in their infancy, had, in this affair, done more to humble the anti-christian barbarians on that coast, than all the European States had done for a long series of time.” Sir Alexander Ball, a distinguished commander in the British navy, addressed his congratulations to Commodore Preble.

After the junction of the two squadrons, Commodore Preble obtained leave to return home. This he did with the greater pleasure, as it would give the command of a frigate to Captain Decater.

On his return to the United States, he was received and treated every where with that distinguished attention, which he had so fully merited. Congress voted him their thanks, and requested the President to present him with an emblematical medal.

Our limits will only allow us to glance briefly at a few of the remaining victories of the American navy. A formal declaration of war against Great Britain was passed by Congress on the 18th of June, 1812. On the 19th of August, the memorable capture of the British frigate Guerriere by the Constitution under Captain Hull, took place. On the 19th of October the British sloop of war Frolic was taken by the Wasp, commanded by Captain Jacob Jones; before the latter could escape, however, with her prize, being in a very disabled state, she was captured by the British seventy-four, Poictiers. On the 25th of October, the United States under Commodore Decater, fell in with and captured, off the Western Isles, the British frigate Macedonian, mounting forty-nine guns and carrying three hundred and six men. The Macedonian had one hundred and six men killed and wounded. The United States five killed and seven wounded. The Victory of the Constitution over the Java, followed next, and was succeeded by that of the Hornet, commanded by Captain Lawrence, over the Peacock. The loss of this brave officer in the subsequent engagement between the Chesapeake and Shannon, was generally lamented by his countrymen.