Prof. Allen Guelzo's Gettysburg: The Last Invasion was reviewed by the New York Times on June 28. The review also appeared in the June 30 Sunday Review section of the print edition.
From the NY Times:
In his graphic and emotionally affecting “Gettysburg: The Last Invasion,” Allen C. Guelzo, a distinguished Lincoln scholar who teaches at Gettysburg College, offers an extraordinarily detailed and realistic account. Guelzo quotes a New York soldier’s remembrance, and thereby demonstrates the challenge any military historian faces: “The reality of war is largely obscured by descriptions that tell of movements . . . of armies, of the attack and repulse, of victory and defeat. . . . All this leaves out of sight the fellows, stretched out with holes through them, or with legs and arms off.” Guelzo rises above the carnage and makes clear that in Robert E. Lee’s invasion, which threatened Northern cities like Washington and Philadelphia, everything — “the whole war” — was at stake. If Lee’s Army of Northern Virginia had decisively defeated (and it nearly did) George G. Meade’s Army of the Potomac at Gettysburg, and sent the Northerners into yet another devastating retreat, some version of Confederate victory could have been achieved that summer. With that, we can only imagine how much of American, and even world, history might be different.