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BATTLE // February 9, 1799

USS Constellation vs L'Insurgente

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Significance

The capture of L'Insurgente by USS Constellation was a significant engagement of the Quasi-War, the undeclared naval conflict between the United States and France that ran from 1798 to 1800. In a single-ship action between frigates, Constellation — with a smaller complement of 316 men against L'Insurgente's approximately 400 — succeeded in taking the French vessel after an intense exchange of broadsides and musket fire. The French suffered 330 casualties, a toll that underscored the severity of the engagement. As one of the defining frigate actions of the Quasi-War, the battle demonstrated the early combat effectiveness of the United States Navy and its ability to engage and defeat a larger French force at sea.

Tactics

Both frigates exchanged heavy broadsides and musket fire in a close-quarters single-ship action, after which Constellation compelled the surrender and capture of L'Insurgente.

Forces & casualties

Troop strength

  • États-Unis316
    medium
  • République française400
    medium

République française fielded a 1.3 : 1 numerical advantage

Casualties

  • République française330
    medium83% loss rate

Commanders (3)

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3 sibling battles · 2 factions

Last verified June 2026
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