Robert E. Lee's Major Battles As General By sophelene99 Apr 12, 1861 The Civil War Begins Apr 24, 1861 Lee Becomes The Confederacy's General He became the Confederacy's general in 1861, at the beginning of the Civil War. Jun 27, 1862 The Battle Of Gains Mill Jun 30, 1862 The Battle Of Glendale Sep 17, 1862 The Battle Of Antietam Dec 13, 1862 The Battle Of Fredericksburg Jul 2, 1863 The Battle Of Gettysburg Jun 8, 1864 The Battle Of Petersburg