Uh, I spoke of the siege at Vicksburg and showed how Grant achieved a victory in the greatest siege of the century in order to refute your silly LIE that he was nothing but a butcher.
And no Cold Harbor was not an event more disastrous than Pickett's Charge.
Sorry, but I know plenty of people knowledgable of tactics, that will disagree. Grant was no great tactician, and his strength was in NUMBERS. Lee ran circles around the Federals on more than one occasion. Lee & Jackson together were unstoppable.