President Ulysses S. Grant
He's not a Lost Cause anymore.
But in addition to reminding Americans of the horrors of war, Vietnam showed that resources and industrial might don't guarantee victory. As America's views on war have changed, America's view of its greatest general has changed, too. Gen. Grant was as much the slaves' liberator as Lincoln. "It grows out of an awareness that the United States has won the wars it has won by using its overwhelming power to attack the enemy's infrastructure, and that it was Grant who pioneered this and anticipated in many ways the United States policy in World War II," McPherson says. Grant may not have been a great president, but he was a Great Man, not merely a good one.