Read Iron Kingdom : The Rise and Downfall of Prussia, 1600-1947 Online
Authors: Christopher Clark
In the diplomatic struggle that ensued over the future of Schleswig-Holstein the Austrians were at a geopolitical disadvantage. The duchies were extremely remote from Vienna, and Austria’s interest in maintaining a troop presence there was correspondingly lukewarm. In the autumn of 1864, the Austrians offered Berlin a choice between two courses of action: the Prussians could either (a) recognize the duchies as a separate state under the Augustenburg dynasty or (b) annex them to Prussia and compensate Austria with land along the Silesian border. Bismarck rejected both options, declaring that Silesia was not negotiable and adding rather mysteriously that Berlin had special rights in both duchies. This was followed up in February 1865 by a provocative declaration to the effect that Prussia intended to regard any form of ‘independent’ Schleswig-Holstein as a Prussian satellite. In the meanwhile, the Prussians in the duchies continued to extend their control, prompting furious complaints from the Austrians, who responded by taking the matter to the Confederal Diet and putting the Augustenburg succession back on to the table. By the summer, it looked as if war was imminent. The crisis was deferred when Francis Joseph sent an ambassador to negotiate a new agreement with King William.
The result was the Convention of Gastein signed on 14 August 1865. Based on a proposal by Bismarck, the Convention maintained joint
Austro-Prussian sovereignty in the duchies, while placing Schleswig under Prussian and Holstein under Austrian control. But Gastein was no more than an interim arrangement conceived by Bismarck as a means of gaining time. The Prussian provocations in Holstein continued and in January 1866, Berlin seized on a pro-Augustenburg nationalist meeting in Holstein to accuse Vienna directly of breaking with the terms of the treaty. On 28 February, a crown council in Berlin resolved that war between the two German powers was inevitable. The assembled generals, ministers and senior diplomats agreed that Austria had failed to honour the Gastein Convention and continued to treat Prussia as a rival and an enemy. There was general assent when Bismarck pointed out that Prussia’s mission was to lead Germany and that this very ‘natural and justified’ ambition had been unjustly blocked by Austria. The crown prince was alone in pleading for a non-military resolution.
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Bismarck’s next step was to seek an alliance with Italy. Negotiations began soon after the crown council and a treaty against Austria was signed on 8 April 1866. The two states were now committed to assist each other in the event of a war breaking out with Austria over the following three months. (Bismarck also revived the time-honoured Prussian tradition of the Hungarian fifth column, deployed by Frederick the Great during the Seven Years War and again in the 1790s by Frederick William II, but his contacts with the Hungarian revolutionary movement produced nothing of any consequence.) At the crown council of 28 February, Bismarck had announced as well that he intended to seek ‘more definite guarantees’ from France, and feelers were duly extended to Paris. These produced a chain of vague proposals and counterproposals. Exactly what assurances Bismarck gave to Napoleon has been hotly disputed, but it seems likely that French neutrality was bought with the promise of compensations in Belgium, Luxembourg and possibly in the region between the Rhine and the Moselle (encompassing the Prussian Saarland and the Bavarian Palatinate). Since the Austrians secretly purchased French neutrality on very similar terms (including a French satellite state in the Rhineland!), Napoleon III had every reason to be confident that France would end up as a beneficiary of the Prusso-Austrian conflict, whoever emerged as the victor.
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Russia was the third power whose attitude was crucial to the success of Prussian designs. Russia had blocked the unionist designs of Frederick William IV and Radowitz in 1848–50, while helping to restore Austria’s
fortunes. By 1866, however, things had changed. Russia was locked into a process of fundamental domestic political reform. Relations with Austria were still cool (Russian strategic planning foresaw Austria and Britain – not Prussia – as the most likely opponents in a future war). The post-Crimean estrangement between the two eastern empires had already yielded dividends for Cavour in 1859. This lesson was not lost on Bismarck, who had just left his post at Frankfurt and happened to be stationed at the Prussian embassy in St Petersburg when the Italian crisis broke. Bismarck had cultivated relations with Russia with great care since coming to office as minister-president and there seemed little reason to fear intervention from this quarter.
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These diplomatic preparations were flanked with other measures intended to disorient the German liberal camp and unsettle public confidence in the German Confederation. On 9 April, Bismarck sprang a proposal on the diet calling for the creation of a German national parliament to be elected by direct universal male suffrage. The Confederal representatives were still mulling over this unexpected initiative when news of troop movements in Italy triggered a partial Austrian mobilization on 21 April. Now began a chain of troop deployments and counter-measures that culminated in a full-scale mobilization on both sides.
As the two German great powers prepared for a war, it became clear that most of the lesser states of the Confederation supported Austria. On 9 May, a majority of representatives to the diet voted in favour of a resolution demanding that Prussia explain its mobilization. At the end of the month, the Austrians formally passed responsibility for the duchies to the Confederation. During the first week of June, Prussian troops entered Holstein, encountering no resistance from the Austrians, who withdrew into Hanover. On 11 June, the Austrian ambassador to the diet denounced the Prussian occupation of Holstein as illegal and in breach of the terms of the Convention of Gastein and proposed a resolution calling for the mobilization of the Confederation against Prussia. On 14 June, at the last plenary meeting of the diet in Frankfurt, this resolution was passed by majority vote and the Prussian ambassador walked out, declaring that his government regarded the Confederation as dissolved. Five days later, the Italians declared war on Austria.
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With Russian and French neutrality virtually assured, Prussia went to war with Austria in the summer of 1866 under an auspicious great
power constellation. Yet the outcome was by no means a foregone conclusion. Most well-informed contemporaries – including Emperor Napoleon III, who had actually fought the Austrians in 1859–predicted an Austrian victory.
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The combat performance of the two armies in the Danish war had done nothing to dispel this view. It is true that Prussians had embarked on a programme of military reforms after 1859, but these were not as revolutionary as has often been claimed.
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In any case, Austria too had responded to the disasters of 1859 with its own reform programme. Its artillery was sophisticated and deployed by well-trained battery teams. It was true that Prussia enjoyed a slight superiority in numbers in the Bohemian theatre of operations where the war would be decided: 254,000 Prussians faced the 245,000 troops of Austria’s North Army. The situation would have been very different, of course, had the Italians not committed over 200,000 men to their offensive in Venetia, forcing the Austrians to divert an extra 100,000 troops to the south-western front.
Austria also enjoyed an important strategic advantage: in the diplomatic contest of 1866, most of the middling German states opted to side with Vienna against Berlin. The Prussians were thus obliged to mobilize not only against the Austrians but also against the other German combatant states, including, most importantly, Hanover and Saxony. In all, the Confederal armies of 1866 mustered some 150,000 men dispersed among a number of separate armies. This meant in turn that Prussia’s Chief of the General Staff Helmut von Moltke had to break the Prussian army into four blocks small enough to be transported quickly by Prussia’s widely separated rail lines to the Austrian, Saxon and Hanoverian frontiers. Austria, by contrast, could operate on a much more concentrated terrain and had the advantage of interior lines.
Why, then, did the Prussians win? Bismarck’s famous invocation of ‘blood and iron’has often been seen as a reference to the role of industry in consolidating Prussian power. Prussia, or at least parts of Prussia, had certainly experienced a dramatic growth in their industrial capacity during the later 1850s and 1860s. But this played a lesser role in Prussia’s victory over Austria than we might suppose.
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The figures we would need to make direct comparisons are not available, but there is little to indicate that a major qualitative gap separated the economies of the two antagonists in 1866. In some respects, indeed, the Prussian economy appears to have been more backward than the Austrian – a larger
proportion of Prussians than Austrians worked in agriculture, for example. Of the various weapons that played a role in 1866, the ones requiring the most sophisticated manufacturing processes were the field guns of the artillery, and here it was the Austrians, with their accurate rifled cannon, who clearly had the advantage. In any case, this was not a war that pitted industrial economies against each other. It was a short, sharp fight in which both sides managed to get by on pre-stocked weaponry and munitions. It is true that Moltke attached great importance to the use of railways, but in the event his elaborate planning nearly brought disaster upon the Prussians, whose supply trains caught up with their armies only when the battle of Königgraätz had already been won. In the meantime, the Prussian armies lived off the land or paid their way, much as the armies of Frederick the Great had done. Industrial power thus mattered less than politics and military culture.
Although the army of the German Confederation disposed of some 150,000 men, these were hardly a formidable fighting force. They did not properly constitute an army, since they had never trained together and did not possess a unified command structure – here was the consequence of a half-century of particularism within the Confederation. Moreover, the armies of the middling states were unwilling to take the initiative against Prussia. Appealing to the stipulations of the Confederal constitution, which forbade the German states to settle their differences by force, they preferred to wait until Prussia had openly breached the peace. Bavaria, for example, which controlled the largest single contingent – the 65,000 men of the VII Federal Corps – informed Vienna early in June 1866 that the Austrians could rely on Bavarian support only if the Prussians actually invaded a fellow German state. They were thus unwilling to contemplate pre-emptive action of any kind.
Many of the other individual federal corps were hamstrung by internal political divisions that made swift and concerted action virtually impossible. In the case of the VIII Confederal Corps, for example, comprising troops from Württemberg, Baden and Hesse-Darmstadt, the commander, Prince Alexander of Hesse, was an Austrophile who favoured intervention on behalf of Austria, but the staff chief was a more cautious Württemberger. His orders from his sovereign were to slow the prince’s deployment to a crawl and to do what he could to prevent movements east, so that troops would be available if necessary to defend the frontiers of Württemberg itself. In the face of the Prussian offensive, the Han
overian army withdrew south in the forlorn hope that the Bavarians or the Austrians might march north to join them. After a small victory against a numerically inferior force at Langensalza, they were pushed out of their defensive positions by Prussian reinforcements, compelled to surrender on 29 June, and provided with free train tickets home. News of the Hanoverian defeat further reinforced the determination of the south German states to sit tight and guard their frontiers. The only truly effective contribution came from the Saxons, who abandoned their home territory to fight alongside the Austrian North Army in Bohemia.
The chief author of the Prussian victory of 1866 was the Chief of the General Staff, Helmut von Moltke. In Bohemia, to a much greater extent than in Denmark, Moltke was able to unfold an innovative strategic conception. His approach to the Austrian war was to break the Prussian forces up into groups small enough to be moved at the highest possible speed to the point of attack. The objective was to mesh the converging units wing-to-wing only at the last minute, in order to deliver the decisive blow in battle. The advantage of this approach was that it reduced the logistical strain on narrow country roads and one-track railways and thus saved on tailbacks and traffic jams. The increased speed and manoeuvrability of the forces in the field raised the likelihood that the Prussians rather than their enemies would be able to determine the timing and the setting of the decisive engagement. It was a conception of mobilization that required sophisticated use of the most modern infrastructural resources: of railways and roads in particular, and of telegraph, since the separate armies would be out of immediate contact with each other and would need to be rigorously coordinated from headquarters. The chief potential drawback of this approach was that it could, as we have seen, so easily go wrong. If the armies were forced off course or failed to keep pace with each other, there was the risk that the enemy might attack them individually with a superior force.
Complementing this aggressive strategic approach was a set of measures designed to make the Prussian infantryman the best in Europe. In the mid-1860s, Prussia was the only European great power to be armed with a breech-loading rifle, the Dreyse Zündgewehr, or needle-gun. This was essentially a rifle of the modern type, in which a cartridge consisting of a projectile mounted on a small cylindrical case of explosive charge was loaded into a metal chamber and detonated by a blow from a hammer (known as the ‘needle’ on account of its elongated shape). The needle-gun
had one crucial advantage over the traditional muzzle-loading weapons still used by most European armies. It could be reloaded and fired between three and five times as fast. A man lying behind a tussock of grass, or standing behind a tree could reload, aim and fire his needle-gun without emerging from cover; there was no need to drop powder, wadding and shot down the barrel of the weapon. This allowed for a much more flexible and lethal application of infantry firepower at close quarters than had previously been possible.