 He was a true student of the Civil War, and he knew many details of that battle at Gettysburg. Finally, we ended up at Cemetery Ridge, where Pickett's Charge took place. If I had to guess, Billy, I'd say this is where your grandpas fought. Tell me about it, Mr. President. It was truly awful, Billy. The Confederate troops had artillery over that way, and they let it fly for a long time. It was probably the largest artillery barrage of the entire war.