Pickett's Charge ended the Battle of Gettysburg on July 3, 1863. Its futility was predicted by the charge's commander, Lt. Gen. James Longstreet, and it was arguably an avoidable mistake from which the Southern war effort never fully recovered psychologically.
These men are a part of 50 Southerners who showed up at Gettysburg in 1913---- on the 50th anniversary of the battle. They survived the war, of course. But neater still, they are walking up Pickett's Charge, where they walked 50 years before and survived! And there weren't many of those even in 1863.