from Chris

At daylight on May 18, Gourverneur K. Warren ordered a cannonade all along his line. Twenty-six guns came to bear in a thundering roar.

The “whole army having moved off to our right to make an assault on the enemy,” he wrote, he opened the artillery bombardment in support of the assault. It was also intended to discourage Confederates from making a counter-attack of their own along his line, which was now stretched thin to cover the works …