The Siege of Savannah was a failed French and American attempt to recapture Savannah, Georgia, from the British during the American Revolutionary War. The siege began in September 1779 and concluded with a costly Allied defeat in October. 

Savannah had been captured by the British in late 1778, making Georgia the only colony the British had re-conquered. The French, now allies of the Americans, joined forces with General Benjamin Lincoln’s Continental Army to retake the city.  In October 1779, a Franco-American force of over 5,000 men, commanded by French Admiral Charles-Hector d’Estaing and American General Benjamin Lincoln, launched a major assault on the city. 

The British defenses, led by General Augustine Prevost, were heavily fortified, with two concentric lines of fortifications and strong points like the Spring Hill redoubt. The allied assault failed, resulting in heavy casualties. General Pulaski was mortally wounded on October 9 during a cavalry charge. He was attempting to rally fleeing French forces.

The British successfully defended Savannah, which remained under their control for three more years. 

The Siege of Savannah is remembered as a costly and significant defeat for the Franco-American forces, demonstrating the strength of the British defenses and the challenges faced by the revolutionaries in the Southern Theater.