But Bismarck had improved on Cavour's example; he did not want so much, he asked only for neutrality: the King of Prussia would not be called upon, like Victor Emmanuel, to surrender the old possessions of his House.
Bismarck returned to Berlin with his health invigorated by the Atlantic winds and his spirits raised by success.

The first step now was to secure the help of Italy; he had seen Nigra, the Italian Minister, at Paris, and told him that war was inevitable; he hoped he could reckon on Italian alliance, but there was still, however, much ground for anxiety that Austria might succeed in arranging affairs with Italy.
The relations of the four Powers at this time were very remarkable.

All turned on Venetia.

The new Kingdom of Italy would not rest until it had secured this province.

Napoleon also was bound by honour to complete his promise and "free Italy to the Adriatic"; neither his throne nor that of his son would be secure if he failed to do so.