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BATTLE // March 29, 1780

Siege of Charleston

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Overview

The siege of Charleston was a major engagement and major British victory in the American Revolutionary War, fought in the environs of Charles Town, between March 29 and May 12, 1780. The British, following the collapse of their northern strategy in late 1777 and their withdrawal from Philadelphia in 1778, shifted their focus to the North American Southern Colonies. After approximately six weeks of siege, Major General Benjamin Lincoln, commanding the Charleston garrison, surrendered his forces to the British. It was one of the worst American defeats of the war.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Siege of Charleston, fought between March 29 and May 12, 1780, stands as one of the worst American defeats of the Revolutionary War. Following the collapse of British northern strategy in late 1777 and the withdrawal from Philadelphia in 1778, British commanders redirected their operational focus toward the Southern Colonies. After approximately six weeks of siege, Major General Benjamin Lincoln surrendered the Charleston garrison to Sir Henry Clinton's forces. With 5,466 American casualties against a garrison of 6,577, the capitulation effectively eliminated a substantial portion of Continental and allied strength in the South. The loss deprived the American cause of a major port city and its defending army in a single engagement, opening the Southern theater to sustained British operations and establishing a forward position from which Cornwallis would subsequently pursue his Carolina campaign.

Forces & casualties

Troop strength

  • Great Britain12,847
    medium
  • United States6,577
    medium

Great Britain fielded a 2.0 : 1 numerical advantage

Casualties

  • United States5,466
    medium83% loss rate

Commanders (8)

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Related

6 sibling battles · 6 factions

Last verified June 2026
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