Battle Description

The Battle of Vincennes was a daring winter campaign led by George Rogers Clark to recapture Fort Sackville from British control. After learning that British Lieutenant Governor Henry Hamilton had reinforced the fort, Clark marched over 180 miles through flooded terrain with a small force of Virginia militia and French settlers from Kaskaskia.

Arriving on February 23, 1779, Clark launched a surprise siege. His men surrounded the fort and used psychological tactics—including executing captured Native allies within sight of the walls—to pressure Hamilton. After two days of bombardment and negotiation, Hamilton surrendered on February 25.

Outcome

• Outcome: American victory; British garrison surrendered.
• Casualties:
  • American: ~1 killed, ~4 wounded
  • British: ~6 killed, ~79 surrendered

Significance on the Revolution

The victory at Vincennes secured the western frontier for the American cause and disrupted British influence among Native tribes. Clark’s campaign demonstrated the strategic importance of the trans-Appalachian region and bolstered American claims to the Northwest Territory during postwar negotiations. His success also elevated Clark’s reputation as a frontier commander and symbolized the reach of the Revolution beyond the eastern seaboard.