An article by Major Michael G. Anderson, USA, published by the Marine Corps University in the Marine Corp University Press entitled UNDERSTANDING BATTLEFIELD PERFORMANCE OF U.S. MARINES ASHORE DURING THE CIVIL WAR says this about training:
An obvious contributing factor to performance in combat is the degree of training received. Marines were ill-prepared for the complexities of land-based tactics in formation at larger echelons. However, this was not for lack of effort and certainly did not reflect the confidence and spirit of the average Marine, even if their own officers, typically those most experienced in shore combat, expressed reservations, such as prior to the Fort Sumter raid.
A Marine at Washington Barracks who participated at Bull Run wrote to his parents prior to the fight, "We will be drilled better in one Month here than the Volunteers would be in six Months." The Navy created a provisional Marine battalion for amphibious operations in fall 1861, however, it was never used and was shortly disestablished, with the Marines returning to traditional duty. The other provisional battalion trained but was not used for the major land assault on Battery Wagner but was employed poorly on the amphibious Fort Sumter assault. This unfortunately limits solid analysis of provisional Marine battalion performance ashore in comparison to ad hoc Marine battalions, the far more common fighting Marines employed ashore. A common fear of the special amphibious battalion concept among senior Marines was its use leading to Marines being absorbed into the Army and losing their separate and naval identity, although this fear did not preclude Marines from participating regularly ashore in many small and some larger engagements, as detailed previously. New recruits recorded drills "at all hours of the day" and that they had rigorous training, although it was dominated by individual and crew drills, not collective training of larger formations. Their drills included many land-based activities, among them artillery and light infantry, as well as traditional ship battery drills. A Marine Corps history noted, "While the Army drilled, marched, and countermarched . . . some 200 Marines were assigned to the Potomac Flotilla to scour the Maryland countryside . . . in search of Confederate arms." These sorts of activities, however, did not prepare them for large maneuvers ashore, although it did provide experiences and contributions to the war effort even if at the expense of more time training for larger land engagements.
Major Reynolds trained and drilled a select Marine detachment, creating a specifically organized amphibious battalion to serve with Admiral Samuel Dupont's flotilla. Unfortunately, this special drilled amphibious force was never used for anything more than garrison duty of abandoned coastal forts, such as St. Augustine, Florida. On 25 March, Dupont released Reynolds and his amphibious battalion back to normal Marine duty across the fleet. Much as a pattern can be seen in attribution to poor organization, training, leadership, and proper equipping, so it was in re- peated experiments in forming organized amphibious battalion-size elements organized, trained, and designed for land operations never used and disbanded for the needs of the fleet.
Zeilin, one of the most experienced Marine officers in combat ashore, formed one of the provisional, semipermanently organized battalions at Marine Barracks Brooklyn comprising 12 officers, 13 sergeants, 12 corporals, 6 musicians, and 233 privates from across the various Marine barracks, stations, and naval ships. It departed New York on 13 July 1864. This composite Marine battalion drilled on Morris Island, South Carolina, for an assault on Battery Wagner but was never employed against those enemy fortifications. Zeilin requested relief from the command in a message to Rear Admiral John Dahlgren, asserting the Marines assembled were unable to accomplish the task of storming the enemy fortifications and noting, "The Marine Corps is accustomed to act in small detachments on board of ship and ashore, and opportunities rarely offer to have more than one company together." Certainly reflecting on his own experiences in previous land combat, notably at Bull Run, he continued, "It is absolutely necessary that they should have time to become organized and drilled as a battalion and to know their officers and their duties on a larger scale." He pointed out,
Many of these men are raw recruits. . . every garrison, receiving (ship), and even seagoing ships at the North, has been stripped to get these few together; and until they are exercised for some time under their present officers . . . it would be very dangerous to attempt any hazardous operations requiring coolness and promptness. . . and no duty which they could be called upon to perform requires such perfect discipline and drill as landing under fire. As few of these have ever seen an enemy . . . they would doubtless fall into great confusion despite the best efforts of their officers.
He elaborated on the difficulty of drilling in the heat on a narrow beach during the day and of darkness at night precluding training for company and larger formations.
While it is true that nearly 78 percent of the Marines available to Zeilin for the Charleston operations had previous service, service does not equate to combat experience, especially the sort needed. While this may have been true of the enlisted, 10 of the 14 Marine officers had direct combat experience either in the Mexican-American War, earlier in the Civil War, or both, such as Zeilin. Dahlgren, his faith in the Marine battalion shaken, wrote in his diary, "The Commander of Marines reports against risking his men in attacking works. Two of his officers had done the same in conversation. I said it must come from the Senior in writing. Rather hurtful. What are Marines for?" Dahlgren removed the Marines from any plans to storm Wagner and used them for security and guard duties. The following attempted assault on Fort Sumter painfully vindicated these concerns. The Marine battalion assembled on Morris Island had been the largest gathering of Marines in one formation since the Mexican-American War.
Oddly, a consistent desire for Navy squadrons along the coast was to possess a Marine battalion-size formation, but they rarely maintained these provisional, semipermanent battalions with any continuity, supported them adequately, or employed them correctly, if at all. In a hybrid manner, Captain Edward Reynolds managed a composite Marine battalion in the aftermath of the Fort Sumter debacle with the Marines remaining in the South Atlantic Blockading Squadron under Admiral Dahlgren. It was neither a semipermanent provisional battalion detached from ship duty organized for duty ashore nor was it a temporary, ad hoc immediate operation formation. Reynolds continually worked to acclimate this Marine battalion in Port Royal, South Carolina, gathering the Marines together to conduct drills twice a day. The reputation of this composite Marine battalion grew.
Dahlgren's composite fleet brigade of the South Atlantic Blockading Squadron drilled for a day and a half before embarking on the Honey Hill expedition, one of the most successful (relatively) Marine forays into land combat during the war. It comprised two battalions of sailors and one of Marines, led by the only Marine officer of the fleet, a Second Lieutenant George G. Stoddard with less than two years in the Corps. The other officer vacancies in the Marine battalion were filled by naval ensigns designated acting Marine officers and Marine NCOs filling the company leadership. Dahlgren commented after observing their training, "The officers are clever and the men zealous . . . it is very difficult to get the officers into the idea of light drill and open order. They will mass the men."Stoddard wrote, "Although sergeants make good acting officers, still, in action, they do not feel the responsibility; neither do they have that moral effect on the men that a commissioned officer does.. . .Please allow me to call your attention to the fact that with 200 Marines in this squadron there is but one officer."
As the war progressed, this exemplified how— even without an organized, cohesive doctrine—differently minded officers grasped the importance and opportunity of preparation for large-scale land operations and struggled to prepare ad hoc Marine battalions for success in them. Without this, Marine battalions courted disaster on land, as shown by the naval brigade at Fort Fisher, having never drilled together prior to the assault.
Semper Fi