They didn't do anything - somewhat surprisingly.
In Sherman's March to the Sea across Georgia, Savannah was the end of the line. It was when Sherman got close to Savannah that he made contact with the Union Navy, whichwas able to send his communications to Washington for the first time in five weeks (because the telegraph wires had been cut.)
Sherman was expecting a battle for Savannah, with the small Confederate army under General Hardee, but that army escaped across the river into South Carolina, while Sherman was absenton a reconnaissance that got held-up by rough seas.
For that reason, Sherman did not strictly need to destroy Savannah. Perhaps he felt hehad proved his point in Georgia, and was waiting to put the boot into South Carolina, the state that had started the war,whose capital (Columbia SC) he would soonburn to the ground.
But a strange legend still persists about Sherman's reason for not destroying Savannah, as he had destroyed so much else, and why the troops were put on their best behaviour in that city - as they weren't elsewhere.
Some say that Sherman had onceloved a girl from Savannah, and thathe identified the city with her memory. It sounds most unlike the brutal, half-mad Sherman that we think we know.
Either way, the liberation of Savannah was a body-blow to the blockade-runners, and like the whole of the March to the Sea, it shortened the war by many months, at almost nil casualties.
William T Sherman of the north will lead a march from Savannah to columbia SC
Savannah was occupied by Union forces on December 22. 1864. These forces were led by Civil War General Sherman.
federal troops were union soilders
confederate soldier fire on union troops in fort sumter.
They raised troops for the Union, but they also raised troops for the Confederacy.
William T Sherman of the north will lead a march from Savannah to columbia SC
After a long march, Sherman's troops reached the outskirts of Savannah Georgia on December 10, 1864. Since Confederate General William Hardee had correctly identified Savannah as Sherman's target, he had time to entrench 10,000 troops in good positions. Hardee had also flooded the nearby rice fields so that the only way to approach Savannah was by narrow causeways.
The Siege of Savannah is when the British bombarded the city of Savannah with 800 troops and Savannah remained under British control
Savannah was occupied by Union forces on December 22, 1864.
The battle of saratoga
Savannah
The Union troops were advancing while the Rebel troops were retreating.
Savannah was occupied by Union forces on December 22. 1864. These forces were led by Civil War General Sherman.
The union troops, were about 90,000 strong.
The Union had around 95,000 troops and Confederates had 75,000 troops.
federal troops were union soilders
The chief concern of General Sherman's march to Savannah, or in fact to any point on the Atlantic coast that he might be able to march north and reinforce Union troops battling the Confederates in Virginia. Such a combined Union force there would enable the Federals to break through the Confederate entrenchments surrounding Petersburg.