37.1 KT1 - Increased firepower and steam power, 1859-70

The Enquiry Frame

This is a Paper 3 depth key topic. The enquiry is not a catalogue of weapons. It asks how increased firepower and steam power changed the way armies were moved, supplied, planned and fought between the Italian campaign of 1859, the US Civil War and the wars of German unification.

Use this chronological spine:

The strongest line of argument is: the age of steam and increased firepower rewarded armies that could plan, concentrate and supply force before battle as well as fight effectively during battle. Technology increased possibilities, but it did not automatically produce victory.

Steam Power and 1859

Before railways and steamships, large armies usually moved by marching, horse transport and sail. That made distance a military fact. Troops became tired before reaching the battlefield; horses consumed huge amounts of fodder; ammunition and food moved slowly; and commanders often had to wait weeks for units to concentrate. Steam power changed the time scale. Railways could move soldiers, horses, guns and supplies far faster than roads. Steam boats could carry large forces by river or sea without depending entirely on wind.

The war of 1859 between France and Piedmont-Sardinia on one side and Austria on the other was a turning point because both steam and rail were used at strategic and operational level. France planned to move troops through French railways to Mediterranean ports such as Marseille and Toulon, send many by steamship to Genoa, and then use Piedmontese railways towards Alessandria and Turin. Other French forces moved by rail towards the Alpine approaches. This did not mean France had solved modern mobilisation. It meant the French had discovered a way of making distance less decisive.

The French movement was impressive. Tens of thousands of men and thousands of horses were moved from Paris towards the Mediterranean or Sardinian frontiers in late April 1859 far faster than they could have marched. The first French troops reached Genoa quickly after Austria's ultimatum to Piedmont. The military significance was clear: Austria's chance depended on striking Piedmont before France arrived in force.

The problem was that transport speed was not the same as deployment efficiency. Railways delivered bodies of troops, but armies still needed clear timetables, loading plans, port coordination, horse transport, food, ammunition, medical arrangements and command decisions. French rail and steamship movement got men to northern Italy quickly, but the campaign still suffered from improvisation, bottlenecks and the difficulty of turning arrivals at railheads and ports into a perfectly coordinated field army.

Austria's problem was even more damaging. The Austrian commander, Count Ferenc Gyulai, had the early opportunity to invade Piedmont rapidly, threaten Turin, or cut the line by which French forces were arriving from Genoa. Instead, the Austrian advance was slow and uncertain. The Austrians crossed the Ticino only after crucial time had passed. One Austrian corps moved south of the Po where it might have threatened the vital Genoa railway, but it was withdrawn. By mid-May, enough French forces had arrived that the chance of a quick Austrian victory had gone.

This matters for judgement. The 1859 campaign did not prove that railways automatically won wars. It proved that railways created a new race: could an army mobilise, concentrate and deploy before its enemy used the same transport network against it? France used steam power more effectively than Austria in the opening phase, but neither side possessed the kind of staff system that would later make railway mobilisation a disciplined military instrument.

Increased Firepower

The firepower revolution of the mid-nineteenth century had several parts. It was not only one invention. Infantry weapons became more accurate, some weapons could be loaded faster, sidearms became more reliable, and artillery gained range and precision. The result was that exposed troops faced more danger for longer, and commanders had to rethink the relationship between movement, fire and shock tactics.

The rifled musket was a key bridge between older and newer warfare. A smoothbore musket fired a round ball with limited accuracy. A rifled barrel had spiral grooves that made a bullet spin, improving accuracy and range. Earlier rifles were slow to load because the bullet had to fit tightly into the rifling. The Minie ball helped solve this problem. It was a conical bullet, slightly smaller than the barrel, with a hollow base that expanded when fired, gripped the rifling and spun. This meant an infantryman could load much like a musket but fire with rifle-like accuracy.

The Minie ball increased the killing power of ordinary infantry. It did not make every soldier a perfect marksman, and battlefield smoke, fear, training, terrain and poor visibility still mattered. Yet it widened the zone in which advancing soldiers could be hit. In the US Civil War, where rifled muskets were widely used, frontal attacks against prepared or well-positioned defenders could become extremely costly.

The Colt revolver changed a different part of combat. The Colt Model 1860 Army revolver was a six-shot .44-calibre handgun widely used by Union troops because of its reliability. A revolver did not decide major battles in the way railways or artillery could. Its importance was more local: cavalry, officers and soldiers in close combat had repeated shots before reloading. It also symbolised industrial arms manufacture. Repeating personal firepower was becoming more normal, even if most infantry still carried single-shot muzzle-loaders or breech-loaders.

The breech-loading rifle was more disruptive. A muzzle-loader had to be loaded from the front of the barrel. That usually required the soldier to stand or expose himself while ramming the cartridge and bullet down the muzzle. A breech-loader was loaded from the rear. The Prussian Dreyse needle gun, adopted earlier but made famous in 1866, allowed soldiers to reload faster and from a kneeling or prone position. This increased the rate of fire and reduced exposure.

The breech-loader versus muzzle-loader debate was therefore not a simple contest between "modern" and "old-fashioned".

Artillery changed too. Rifling improved range and accuracy, while breech-loading and steel manufacture promised faster, stronger guns. In 1859 the French La Hitte system of rifled muzzle-loading artillery made a strong impression. Prussia then pushed towards cast-steel, rifled, breech-loading Krupp artillery. The great lesson, however, was that guns were not useful just because they were technically superior. In 1866 Prussia had modern guns but did not use them decisively. By 1870, Prussian-German artillery was much better integrated into tactics: batteries were brought forward earlier, massed more effectively and used to support infantry attacks.

For assessment, the key is balance. Increased firepower made the battlefield more lethal, but its effects depended on doctrine, training, supply and leadership. A rifle, revolver or gun was not a complete military revolution by itself. It became revolutionary when armies changed how they moved, protected, supplied and commanded men under fire.

Moltke and the General Staff

Helmuth von Moltke became chief of the Prussian General Staff in 1857. His importance was not that he personally controlled every movement on the battlefield. It was that he helped build an institution able to think about war before war began. The General Staff studied maps, possible enemies, railway lines, mobilisation timetables, supply requirements and command arrangements. It trained officers to solve military problems in a shared professional language.

This was a major answer to the problems revealed in 1859. Railways made rapid concentration possible, but only if an army already knew which units would use which lines, in which order, with which horses, guns, ammunition and supplies. A railway is not an elastic road. If trains arrive in the wrong order, if unloading points are blocked, or if units are incomplete when they reach the front, speed turns into chaos. Moltke's staff system treated mobilisation and railway movement as problems to be calculated in advance.

Moltke's approach had several elements: