structural:reformatting
The repercussions on diplomatic relations

The disapproval of the various European states culminated in the direct participation of the Sardinian army in the Expedition of the Thousand. In reaction, Spain and the Russian Empire interrupted diplomatic relations with the Kingdom of Sardinia, while the Austrian Empire, which had not maintained relations with this country since 1859, after the Second Italian War of Independence, sent its troops to the Mincio border. France made no hostile statements, but recalled its ambassador. Queen Victoria and her prime minister John Russell convinced the Kingdom of Prussia not to hinder the ongoing process of Italian unification. On 26 October 1860, the same day as the meeting in Teano between the king and Garibaldi, Austria organized a congress in Warsaw to apply measures against the Kingdom of Sardinia, without success; held back by this crisis, Cavour was unable to be present at Teano.

After the creation of the Kingdom of Italy, the United Kingdom and the Swiss Confederation were the first to recognize the new state (30 March 1861), followed by the United States on 13 April. France negotiated the presence of French troops in Rome and recognized the Kingdom of Italy on 15 June, shortly after Cavour's death. It will then be Portugal 's turn on 27 June, followed by Greece, the Ottoman Empire and the Scandinavian countries. The recognition of the Netherlands and Belgium occurred in two phases: they recognized the new title of Victor Emmanuel II in July, then the kingdom in November, after a long clash between conservatives and liberals in the Belgian parliament over the latter.