...and Twenty-third regiments. Grant had massed 65,000 men opposite this brigade. Beauregard's whole force in the line was only three-and-a-half brigades. The theory of the assault, as stated by General Meade in the Court of Enquiry, held by the Federals soon after, was for General Burnside, with 15,000 men to rush in the opening made by the explosion, and dash over to Cemetery Hill, five hundred or six h...