Infantry line tactics in the American Civil War can perplex the mind. Hundreds of years of line infantry tactics seem to be perfected to horrifying effect. Casualties from the outbreak of the war shocked the American public. Dead and wounded amounting to greater than all the previous conflicts combined, would fall in a single day. Many have often pondered the question, maybe they should have changed their tactics? Austin Duran explains.
Battle of Shiloh by Thure de Thulstrup.
The Minie ball surely would have caused the need for a change right?
Invented by Claude-Etienne Minie in 1846, the Minie ball changed the battlespace in 19th century warfare. The Minie ball was a hollowed out conical shape, with multiple grooves near the rear. The hollow portion in the rear of the round caused the round to expand. This expansion would press the bullet grooves into the sides of the barrel, catching the rifling and inducing a spin. A spinning round is far more accurate than a non-spinning round. Think of it as a spiraling football versus a shotput. Not only is it more accurate, it will travel much farther, and faster. Additionally, the conical shape was far more aerodynamic further adding to its lethality.
This Minie ball could kill out to 800m while the round ball of decades past could only be lethal to 200m. Even though no soldier could intentionally hit anything at that range, the range of battlefield lethality nevertheless increased 400%. As anything within the 800m was within lethal range. A three thousand man brigade, firing just 2 rounds a minute, could empty its 40-60 round allotment in just 20-30 minutes, putting 120k-180k rounds out in the process. While these numbers would have been the same prior to the invention of the Minie ball, the increased lethal range added significantly to the lethality on the battlefield – especially with continued use of compressed line infantry tactics.
If not the Minie ball, maybe the mass casualties?
From the very outset of the war the casualties were aggressive. The first major battle, the Battle of Bull Run with around 5,000 casualties, was the single bloodiest day in American history up to that point. A horrid record that would be surpassed at Shiloh and Antietam with around 23,000 casualties each. Despite the mounting losses on both sides, little in way of tactical change would happen until Robert E Lee adopted defensive trench tactics as manpower began to dwindle.
The primary reason for the aggregation of manpower in line formation was to consolidate firepower. Concentration of effort has always been a military tenet. However, the increased range of the Minie ball should have allowed for some dispersion of effort given some assumptions. First, the user of the rifle would have to be trained. Despite the increased accuracy of the Minie ball, the soldier would still need to be precise with their shots as they could no longer rely on massed volleys. This required training which was often not given. Notably at the Battle of Shiloh, many troops on both sides fired their weapons for the first time in combat. The levy style recruitment often left training to wayside in effort to amass sheer numbers.
Murderous technological advancements and massive causalities, beg the question: maybe we should do things differently? Fire and maneuver in smaller squads of men? Perhaps moving from cover to cover, as opposed to massing ranks in front of one another? But I submit to you there is one thing that prevented the modern light infantry tactics that we know today from being used: smoke.
Smoke
Black powder was invented by the Chinese and first used in combat in the 900s AD. And from its inception it produced a tremendous amount of smoke. There are many reasons why small unit tactics would not work in the American Civil War, but the primary was gunpowder smoke.
Even if training was given, the problem of smoke from black powder arises. First, it’s rather difficult to do anything covert, or quickly without being seen when giant puffs of smoke rise from your position. If you have ever seen a reenactment or decide to look one up on YouTube after this article, note that re-enactors often use one-quarter charges when firing. The amount of smoke produced was enormous. Second, assuming you have a trained rifleman, they will only be able to get a few shots off before their vision is likely clouded due to the smoke present. Also, with their smoke signal advertising their position it would be likely only a matter of time before massed volleys could be directed their way. This would render them either dead or hopelessly stuck behind cover.
Another example of how smoke affected the battlefield lay with Picket’s Charge. Prior to the assault by the confederates on the third day of Gettysburg, General Lee ordered a massive artillery bombardment. It is well known that the majority of the rounds sailed over the intended target by several hundred yards, rendering the bombardment ineffective. This shelling lasted over an hour yet no adjustments to fire were made; why? Smoke. They couldn’t see that they were missing their targets.
The burnside carbine, and other repeating rifles were available early in the war, why not invest solely in these sorts of firearms? While the increased fire rate of this sorts of carbines would certainly have unleashed devastation on the battlefield (and did when in properly trained hands—cavalry typically), in the arms of untrained, massed infantry, the smoke would have rendered the commanders blind in record time. This would squelch all hope of command and control in an age of limited command and control as is.
Smokeless powder would not be invented until decades after the American Civil War. With the blinding presence of black powder, commanders continued to use line formations and massed volleys. The drawbacks of smoke outweighed, even nullified, the benefits of new tactics. This led to murderous effects on the battlefield despite technological advancements.
What do you think of the importance of smoke in the American Civil War? Let us know below.
