The relations of France and Austria were still in the same uncertain state before the War of 1870. The foreign policy of Austria was in the hands of Count Beust, a bitter foe of Prussia; but after the concession of constitutional rule to Hungary by the compromise (Ausgleich) of 1867, the Dual Monarchy urgently needed rest, especially as its army was undergoing many changes. The Chancellor's action was therefore clogged on all sides. Nevertheless, when the Luxemburg affair of 1867 brought France and Prussia near to war, Napoleon began to make advances to the Court of Vienna. How far they went is not known. Beust has asserted in his correspondence with the French Foreign Minister, the Duc de Gramont (formerly ambassador at Vienna), that they never were more than discussions, and that they ended in 1869 without any written agreement. The sole understanding was to the effect that the policy of both States should be friendly and pacific, Austria reserving the right to remain neutral if France were compelled to make war. The two Empires further promised not to make any engagement with a third Power without informing the other.
This statement is not very convincing. States do not usually bind themselves in the way just described, unless they have some advantageous agreement with the Power which has the first claim on their alliance. It is noteworthy, however, that the Duc de Gramont, in the correspondence alluded to above, admits that, as Ambassador and as Foreign Minister of France, he never had to claim the support of Austria in the war with Prussia[12].
How are we to reconcile these statements with the undoubted fact that the Emperor Napoleon certainly expected help from Austria and also from Italy? The solution of the riddle seems to be that Napoleon, as also Francis Joseph and Victor Emmanuel, kept their Foreign Ministers in the dark on many questions of high policy, which they transacted either by private letters among themselves, or through military men who had their confidence. The French and Italian sovereigns certainly employed these methods, the latter because he was far more French in sympathy than his Ministers.
As far back as the year 1868, Victor Emmanuel made overtures to Napoleon with a view to alliance, the chief aim of which, from his standpoint, was to secure the evacuation of Rome by the French troops, and the gain of the Eternal City for the national cause. Prince Napoleon lent his support to this scheme, and from an article written by him we know that the two sovereigns discussed the matter almost entirely by means of confidential letters[13]. These discussions went on up to the month of June 1869. Francis Joseph, on hearing of them, urged the French Emperor to satisfy Italy, and thus pave the way for an alliance between the three Powers against Prussia. Nothing definite came of the affair, and chiefly, it would seem, owing to the influence of the Empress Eugénie and the French clerics. She is said to have remarked: "Better the Prussians in Paris than the Italian troops in Rome." The diplomatic situation therefore remained vague, though in the second week of July 1870, the Emperor again took up the threads which, with greater firmness and foresight, he might have woven into a firm design.
The understanding between the three Powers advanced only in regard to military preparations. The Austrian Archduke Albrecht, the victor of Custoza, burned to avenge the defeat of Königgrätz, and with this aim in view visited Paris in February to March 1870. He then proposed to Napoleon an invasion of North Germany by the armies of France, Austria, and Italy. The French Emperor developed the plan by more specific overtures which he made in the month of June; but his Ministers were so far in the dark as to these military proposals that they were then suggesting the reduction of the French army by 10,000 men, while Ollivier, the Prime Minister, on June 30 declared to the French Chamber that peace had never been better assured[14].
And yet on that same day General Lebrun, aide-de-camp to the Emperor, was drawing up at Paris a confidential report of the mission with which he had lately been entrusted to the Austrian military authorities. From that report we take the following particulars. On arriving at Vienna, he had three private interviews with the Archduke Albrecht, and set before him the desirability of a joint invasion of North Germany in the autumn of that year. To this the Archduke demurred, on the ground that such a campaign ought to begin in the spring if the full fruits of victory were to be gathered in before the short days came. Austria and Italy, he said, could not place adequate forces in the field in less than six weeks owing to lack of railways[15].
Developing his own views, the Archduke then suggested that it would be desirable for France to undertake the war against North Germany not later than the middle of March 1871, Austria and Italy at the same time beginning their mobilisations, though not declaring war until their armies were ready at the end of six weeks. Two French armies should in the meantime cross the Rhine in order to sever the South Germans from the Confederation of the North, one of them marching towards Nuremberg, where it would be joined by the western army of Austria and the Italian forces sent through Tyrol. The other Austrian army would then invade Saxony or Lusatia in order to strike at Berlin. He estimated the forces of the States hostile to Prussia as follows:--
Men. Horses. Cannon. France 309,000 35,000 972 Austria (exclusive of reserve) 360,000 27,000 1128 Italy 68,000 5000 180 Denmark 260,000 (?) 2000 72
| Men. | Horses. | Cannon. | |
|---|---|---|---|
| France | 309,000 | 35,000 | 972 |
| Austria (exclusive of reserve) | 360,000 | 27,000 | 1128 |
| Italy | 68,000 | 5000 | 180 |
| Denmark | 260,000 (?) | 2000 | 72 |