Charleston Captured: America's Worst Revolutionary Defeat

Five thousand American soldiers marched into British captivity on May 12, 1780, making the fall of Charleston the worst American defeat of the Revolutionary War. Major General Benjamin Lincoln surrendered the entire Continental garrison after a six-week siege in which British forces under General Sir Henry Clinton methodically tightened a noose of trenches, naval blockade, and artillery around the port city. Clinton had sailed south from New York with 14,000 troops in late 1779, landing on Johns Island in February 1780. He spent weeks positioning his forces to cut off Charleston by land and sea. The Royal Navy sealed the harbor while British engineers dug parallel trenches ever closer to the city's defensive works. Lincoln, pressured by civilian leaders to hold the city, rejected multiple opportunities to evacuate his army before the trap closed. The siege followed the formal European conventions of the era, with each advance of the siege lines bringing a demand for surrender. American defenders fought back with sorties and artillery duels, but their position was hopeless. When British shells began falling inside the city, civilian leaders begged Lincoln to capitulate. He surrendered on May 12, giving up not only his 5,000 troops but also four ships and a massive store of weapons and supplies. The loss gutted American military strength in the South. Four Continental regiments ceased to exist. Clinton returned to New York, leaving Lord Cornwallis to pacify the Carolinas, a task that proved far more difficult than expected. The brutal guerrilla war that followed, led by fighters like Francis Marion and Thomas Sumter, slowly eroded British control and drew Cornwallis northward toward the trap at Yorktown that would end the war.