How had it all happened? The inception of this daring feat must be credited to Commodore Preble; the execution fell to young Stephen Decatur, lieutenant in command of the sloop Enterprise. The plan was this: to use the Intrepid, a captured Tripolitan ketch, as the instrument of destruction, equipping her with combustibles and ammunition, and if possible to burn the Philadelphia and other ships in the harbor while raking the Pasha's castle with the frigate's eighteen-pounders. When Decatur mustered his crew on the deck of the Enterprise and called for volunteers for this exploit, every man jack stepped forward. Not a man but was spoiling for excitement after months of tedious inactivity; not an American who did not covet a chance to avenge the loss of the Philadelphia. But all could not be used, and Decatur finally selected five officers and sixty-two men. On the night of the 3rd of February, the Intrepid set sail from Syracuse, accompanied by the brig Siren, which was to support the boarding party with her boats and cover their retreat.
Two weeks later, the Intrepid, barely distinguishable in the light of a new moon, drifted into the harbor of Tripoli. In the distance lay the unfortunate Philadelphia. The little ketch was now within range of the batteries, but she drifted on unmolested until within a hundred yards of the frigate. Then a hail came across the quiet bay. The pilot replied that he had lost his anchors and asked permission to make fast to the frigate for the night. The Tripolitan lookout grumbled assent. Ropes were then thrown out and the vessels were drawing together, when the cry "Americanas!" went up from the deck of the frigate. In a trice Decatur and his men had scrambled aboard and overpowered the crew.
It was a crucial moment. If Decatur's instructions had not been imperative, he would have thrown prudence to the winds and have tried to cut out the frigate and make off in her. There were those, indeed, who believed that he might have succeeded. But the Commodore's orders were to destroy the frigate. There was no alternative. Combustibles were brought on board, the match applied, and in a few moments the frigate was ablaze. Decatur and his men had barely time to regain the Intrepid and to cut her fasts. The whole affair had not taken more than twenty minutes, and no one was killed or even seriously wounded.