Neither France nor Russia would be so accommodating; France, we have already seen, had begun to interfere, Russia would probably do so; if they came to some agreement they would demand a congress; and, as a matter of fact, a few days later the Czar proposed a congress, both in Paris and in London. Of all issues this was the one which Bismarck dreaded most. A war with France he would have disliked, but at the worst he was not afraid of it. But he did not wish that the terms of peace he proposed to dictate should be subjected to the criticism and revision of the European Powers, nor to undergo the fate which fell on Russia twelve years later. Had the congress, however, been supported by Russia and France he must have accepted it. It is for this reason that he was so ready to meet the wishes of France, for if Napoleon once entered into separate and private negotiations, then whatever the result of them might be, he could not join with the other Powers in common action.
With regard to the terms of peace, it was obvious that Schleswig-Holstein would now be Prussian; it could scarcely be doubted that there must be a reform in the Confederation, which would be reorganised under the hegemony of Prussia, and that Austria would be excluded from all participation in German affairs. It might, in fact, be anticipated that the very great successes of Prussia would enable her to carry out the programme of 1849, and to unite the whole of Germany in a close union. This, however, was not what Bismarck intended; for him the unity of Germany was a matter of secondary importance; what he desired was complete control over the north. In this he was going back to the sound and true principles of Prussian policy; he, as nearly all other Prussian statesmen, looked on the line of the Main as a real division. He, therefore, on the 9th of July, wrote to Goltz, explaining the ideas he had of the terms on which peace might be concluded.
“The essential thing,” he said, was that they should get control over North Germany in some form or other.
“I use the term North German Confederation without any hesitation, because I consider that if the necessary consolidation of the Federation is to be made certain it will be at present impossible to include South Germany in it. The present moment is very favourable for giving our new creation just that delimitation which will secure it a firm union.”
The question remained, what form the Union should take. On this he writes: “Your Excellency must have the same impression as myself, that public opinion in our country demands the incorporation of Hanover, Saxony, and Schleswig.” He adds that this would undoubtedly be the best solution of the matter for all concerned, if it could be effected without the cession of other Prussian territory, but he did not himself consider the difference between a satisfactory system of reform and the acquisition of these territories sufficient to justify him in risking the fate of the whole monarchy. It was the same alternative which had presented itself to him about Schleswig-Holstein; now, as then, annexation was what he aimed at, and he was not the man easily to reconcile himself to a less favourable solution. At the same time that he wrote this letter he sent orders that Falkenstein should quickly occupy all the territory north of the Main.