The battle of Cold Harbor on June 3d was the third tremendous engagement
of Grant's campaign against Richmond within a month. It was also his
costliest onset on Lee's veteran army. Grant had risked much in his change
of base to the James in order to bring him nearer to Richmond and to the
friendly hand which Butler with the Army of the James was in a position to
reach out to him. Lee had again confronted him, entrenching himself but
six miles from the outworks of Richmond, while the Chickahominy cut off
any further flanking movement. There was nothing to do but fight it out,
and Grant ordered an attack all along the line. On June 3d he hurled the
Army of the Potomac against the inferior numbers of Lee, and in a brave
assault upon the Confederate entrenchments, lost ten thousand men in
twenty minutes.
[Illustration: FEDERAL CAMP AT COLD HARBOR AFTER THE BATTLE