It will not suffice to give all the credit for these revolutionary movements to Mazzini, the organizer, Garibaldi, the soldier, and the ambitious monarchs of France and Sardinia. More important than king and emperor was the eminent statesman, Count Cavour, prime minister of Sardinia from 1852. It is to this able man that the honor of the unification of Italy most fully belongs, though he did not live to see it. He sent a Sardinian army to the assistance of France and England in the Crimea in 1855, and by this act gave his state a standing among the powers of Europe. He secured liberty of the press and favored toleration in religion and freedom of trade. He rebelled against the dominion of the papacy, and devoted his abilities to the liberation and unity of Italy, undismayed by the angry fulminations from the Vatican. The war of 1859 was his work, and he had the satisfaction of seeing Sardinia increased by the addition of Lombardy, Tuscany, Parma and Modena. A great step had been taken in the work to which he had devoted his life. [=Garibaldi's Invasion of Sicily=] The next step in the great work was taken by Garibaldi, who now struck at the powerful kingdom of Naples and Sicily in the south. It seemed a difficult task. Francis II., the son and successor of the infamous "King Bomba," had a well-organized army of 150,000 men. But his father's tyranny had filled the land with secret societies, and fortunately at this time the Swiss mercenaries were recalled home, leaving to Francis only his unsafe native troops. This was the critical interval which Mazzini and Garibaldi chose for their work. [=Capture of Palermo=]