Issue was joined at the Diet between the two parties. The Prince brought his claim before it, and those who supported him proposed that, as the succession to the Duchies was in dispute, they should be occupied by a Federal army until the true ruler had been determined. Against this Austria and Prussia proposed that the Federal execution in Holstein, which had before been resolved on, should be at once carried out. If the execution were voted it would be an indirect recognition of Christian as ruler, for it would be carried out as against his Government; on this point, execution or occupation, the votes were taken.

Bismarck was, however, greatly embarrassed by the strong influence which the Prince of Augustenburg had in the Prussian Royal Family; he was an intimate friend of the Crown Princess, and the Crown Princess and the King himself regarded his claims with favour. Directly after his proclamation the pretender came to Berlin; he had a very friendly reception from the King, who expressed his deep regret that he was tied by the London Convention, but clearly shewed that he hoped this difficulty might be overcome. Bismarck took another line; he said that he was trying to induce the new King not to sign the Constitution; the Prince, to Bismarck's obvious annoyance, explained that that would be no use; he should maintain his claims just the same.

The King disliked the Treaty of London as much as everyone else did; he had to agree to Bismarck's arguments that it would not be safe to denounce it, but he would have been quite willing, supposing Prussia was outvoted in the Diet, to accept the vote and obey the decision of the majority; he even hoped that this would be the result. Bismarck would have regarded an adverse vote as a sufficient reason for retiring from the Federation altogether. Were Prussia outvoted, it would be forced into a European war, which he wished to avoid, and made to fight as a single member of the German Confederation. Rather than do this he would prefer to fight on the other side; "Denmark is a better ally than the German States," he said. The two parties were contending as keenly at the Prussian Court as at Frankfort; Vincke wrote a long and pressing letter to the King; Schleinitz appeared again, supported as of old by the Queen; the Crown Prince was still in England, but he and his wife were enthusiastic on the Prince's side.

How much Bismarck was hampered by adverse influences at Court we see from a letter to Roon:

"I am far removed from any hasty or selfish resolution, but I have a feeling that the cause of the King against the Revolution is lost; his heart is in the other camp and he has more confidence in his opponents than his friends. For us it will be indifferent, one year or thirty years hence, but not for our children. The King has ordered me to come to him before the sitting to discuss what is to be said; I shall not say much, partly because I have not closed my eyes all night and am wretched, and then I really do not know what to say. They will certainly reject the loan, and his Majesty at the risk of breaking with Europe and experiencing a second Olmütz will at last join the Democracy, and work with it in order to set up Augustenburg and found a new State. What is the good of making speeches and scolding? Without some miracle of God the game is lost. Now and with posterity the blame will be laid upon us. As God will. He will know how long Prussia has to exist. But God knows I shall be sorry when it ceases."

The only ally that Bismarck had was Austria. Their combined influence was sufficiently strong by a majority of one to carry through the Diet execution instead of occupation; though there was appended to the motion a rider that the question of succession was not thereby prejudiced.

The execution took place. During the month of December the Hanoverians and Saxons occupied Holstein; the Danes did not resist but retreated across the Eider. At the end of the year the occupation was complete. In the rear of the German troops had come also the Prince of Augustenburg, who had settled himself in the land of which he claimed to be ruler.

What was now to be done? The Augustenburg party wished at once to press forward with the question of the succession; let the Diet decide this immediately; then hand over Holstein to the new Duke and immediately seize Schleswig also and vindicate it from Christian, the alien usurper. Bismarck would not hear of this; he still maintained his policy that Prussia should not denounce the London Convention, should recognise the sovereignty of Christian, and should demand from him as lawful ruler of all the Danish possessions the repeal of the obnoxious November Constitution. In this he was still supported by Austria; if the Danes did not acquiesce in these very moderate demands, the Germans should enter Schleswig and seize it as a security. Then he would be able when he wished to free himself from the Treaty of London, for war dissolves all treaties.

The advantage of this plan was that it entirely deprived England of any grounds for interference; Prussia alone was now defending the London Convention; Prussia was preventing the Diet from a breach of treaty; the claim of Denmark was one in regard to which the Danes were absolutely wrong. Bismarck had therefore on his side Austria, Russia, probably France, and averted the hostility of England. Against him was German public opinion, the German Diet, and the Prussian Parliament; everyone, that is, whom he neither feared nor regarded. So long as the King was firm he could look with confidence to the future, even though he did not know what it would bring forth.

With the Parliament indeed nothing was to be done; they, of course, strongly supported Augustenburg. They refused to look at the question from a Prussian point of view. "On your side," Bismarck said, "no one dares honestly to say that he acts for the interests of Prussia and as a Prussian." They feared that he proposed to hand back the Duchies to Denmark; they refused to consider him seriously as Foreign Minister; they spoke of him as a rash amateur. It was to attack him on his most sensitive point. Here, at least, he felt on completely secure ground; diplomacy was his profession; what did the professors and talkers in the Chamber know of it? They were trying to control the policy of the State, but, he said, "in these days an Assembly of 350 members cannot in the last instance direct the policy of a great Power." The Government asked for a loan for military operations; he appealed to their patriotism, but it was in vain; the House voted an address to the King, remonstrating against the conduct of foreign affairs, and threw out the loan by a majority of 275 to 51. "If you do not vote the money, we shall take it where we can get it," Bismarck had warned them. The House was immediately prorogued after a session of only two months, not to meet again till January, 1865.