d
Petersburg
To capture the city of Richmond the capital of the Confederacy.
McClellan's
The Union did not capture Richmond..
Because Richmond was the capital of the Confederacy, and the seat of government.
Ulysses Grant
It was one of the attempts by the Union to capture the Confederate capital, Richmond.
To capture Richmond, the Confederate capital.
General Meade
When President Lincoln had appointed US General Grant as the Union's general in chief, he was given the sacred title of Lieutenant General, used only for George Washington. Grant would not be able to capture Richmond unless he first defeated the Lee led Army of Northern Virginia.
Ulysses S. Grant