Battle of Gettysburg
The Battle of Gettysburg () was fought July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania, by Union and Confederate forces during the American Civil War. The battle involved the largest number of casualties of the entire war and is often described as the war's turning point. Union Maj. Gen. George Meade's Army of the Potomac defeated attacks by Confederate Gen. Robert E. Lee's Army of Northern Virginia, halting Lee's invasion of the North.
Samuel C. Armstrong
After being paroled in a prisoner exchange, Capt. Armstrong returned to the front lines in Virginia in December. The following summer, as part of the 3rd Division of the II Corps under Alexander Hays Armstrong fought at the Battle of Gettysburg in July 1863, defending Cemetery Ridge against Pickett's Charge. Armstrong subsequently received a promotion to Major on August 26, 1863 (but effective July 3, 1863, the first day of the Battle of Gettysburg).