Confederate artillery officer Edward Porter Alexander later argued that a series of avoidable errors, rather than destiny, sealed the Confederate defeat at Gettysburg. Examining the battle through his critical lens reveals a chain of miscommunications, poor planning, and missed opportunities that may have doomed the South’s boldest invasion of the North before its final, fateful charge. One of the most significant factors was the absence of General J. E.
B. Stuart’s cavalry during the crucial opening days. On June 25, 1863, General Robert E. Lee ordered Stuart to collect intelligence, screen the army’s movements, and protect the right flank of Lieutenant General Richard S.
Ewell’s Second Corps. In a controversial decision, Stuart instead took his troopers on a ride farther east than Lee likely anticipated, seeking to capture supplies and disrupt Union operations. This maneuver placed the Union Army between Stuart and the main Confederate force, forcing him on a longer detour that delayed his reunion with Lee until late on July 2. This left Lee without his primary scouting force for the first two days of the battle.
Cavalry acted as the army’s eyes, and without that intelligence, Lee was essentially navigating blindly, severely hampering his ability to make informed tactical decisions. Alexander later denounced Stuart’s actions as a tactical blunder. He argued that separating the cavalry from the main force violated core military principles of maintaining concentrated forces for mutual support. He contended that such raids rarely yielded significant advantages and posed unnecessary risks.
He posited that had Stuart been present, his cavalry could have provided critical intelligence, potentially altering the battle’s momentum in the Confederacy’s favor. The consequences of Stuart’s absence were compounded on June 30, when a brigade from General Henry Heth’s division was sent to Gettysburg to secure supplies, including footwear. It was believed that the Federal Army of the Potomac, under General George G. Meade, was stationed 15 to 20 miles south, so significant resistance was not expected.
However, as the Confederates approached, they encountered a formidable Federal cavalry unit led by General John Buford, already entrenched in the area. Heth refrained from an immediate assault, returning the next morning with his entire division, supported by William Dorsey Pender’s division in reserve. When Heth’s and Pender’s combined force of roughly 12,000 men reached Gettysburg’s outskirts, they confronted Buford’s cavalry division of about 3,000. Though outnumbered, Buford’s unit was tactically positioned and held off the Confederates until Union reinforcements, including the First and Eleventh Corps, swelled Federal numbers to approximately 20,000.
Heth and Pender were thus at a significant numerical disadvantage. Alexander noted that the absence of Stuart’s cavalry was decisive, depriving Lee of essential intelligence. He suggested that with Stuart present, Lee might have avoided committing two divisions to a clash with two Union corps. He also critiqued Heth’s lack of prudence in advancing on Gettysburg, arguing that a more cautious approach, similar to the caution urged on Ewell regarding Culps Hill, should have guided the mission.
The consequences were severe. Heth’s leading brigade suffered heavy losses in its initial clash, weakening his division for the rest of the battle. Pender’s division also incurred significant casualties. Alexander viewed this as a cautionary tale about the dangers of poor planning and inadequate intelligence, which diminished Confederate combat strength.
After the first day, the Union Army secured a dominant position on Cemetery Hill and Culps Hill, giving them a strong defensive edge. Confederate General Richard Ewell faced a critical decision: whether to continue the assault on July 2 or retreat to Seminary Ridge and adopt a defensive stance. Alexander later noted that while the Confederate position was defensible, it was less advantageous than the Union’s. He believed public sentiment would have pushed Meade to act aggressively, making a defensive Confederate strategy feasible.
However, Lee chose to attack on July 2, believing his army was too distant from its supply base to sustain a prolonged campaign. Alexander countered this reasoning, pointing out that the Confederate army remained at Gettysburg for three days and later foraged for supplies for over a week. He believed a defensive strategy would have been wiser, potentially forcing Meade to attack under less favorable conditions. He estimated that Lee’s offensive approach forfeited roughly sixty percent of the Confederates’ prospects for a significant victory.
Alexander also recognized that while the Confederate position on Seminary Ridge was formidable, the Union’s defensive setup was exceptionally robust, amplifying their superior numbers and firepower by about fifty percent. With approximately 93,000 troops to the Confederates’ 71,000, the Union also held a notable edge in artillery. He criticized the Confederate plan for July 2, citing a lack of thorough reconnaissance of Union defenses and insufficient overnight preparations. He also remarked on Ewell’s Second Corps, which was ordered to advance but failed to capture Culps Hill, which Alexander considered nearly impregnable.
He criticized the decision to leave Ewell’s corps in an ineffective position, rendering it largely useless for the remainder of the battle. On July 3, 1863, General James Longstreet tasked Alexander with commanding the First Corps’ artillery during Pickett’s Charge, a crucial role in the Confederate offensive. Alexander was ordered to unleash a powerful barrage to weaken Union forces and pave the way for the infantry advance. Despite his efforts, the Confederate artillery operations lacked cohesive coordination.
While Alexander led the primary bombardment, other artillery units from different corps operated independently, reducing overall effectiveness. General William N. Pendleton had assigned nine howitzers to Alexander, but several were reassigned elsewhere without notice. Additionally, Lieutenant General A.
P. Hill’s artillery on Seminary Ridge was underutilized, with no guns advanced during the charge and valuable ammunition squandered earlier. Alexander also faulted Ewell’s Second Corps, noting that only one of its five artillery battalions joined the bombardment, missing a chance to flank Union positions. Alexander attributed these failures to the lack of a unified artillery command, arguing that a competent chief of artillery could have optimized firepower.
These shortcomings enabled Union forces under Major General Henry J. Hunt to withstand the bombardment and repel Pickett’s Charge, marking the decisive moment of the Battle of Gettysburg and a turning point in the Civil War.