Battle of Spotsylvania, Virginia. Grant’s and Lee’s armies clash again. The battle lasts 10 days and again results in a narrow Union defeat. And once again, Grant continues to move south. In this way, he manages to trap Lee inside the Confederate capital, depriving him of his main weapons: initiative and mobility. During the battle, Union Colonel Emory Upton, a century before the Nazis, invents the schwerpunkt technique, or breaking through entrenched lines, through an intense but very brief bombardment followed by a lightning attack at a single point on the front, then fanning out behind the enemy.
