Grant repositioned his lines in another attempt to engage Lee under more favorable conditions and launched a final attack by Hancock on May 18, which made no progress. A reconnaissance in force by Confederate Lt. Gen. Richard S. Ewell at Harris farm on May 19 was a costly and pointless failure. On May 21, Grant disengaged from the Confederate Army and started southeast on another maneuver to turn Lee's right flank, as the Overland Campaign continued toward the Battle of North Anna.