information:highlighting
Campaign of 1860

On 24 January 1860, Garibaldi married 18-year-old Giuseppina Raimondi. Immediately after the wedding ceremony, she informed him that she was pregnant with another man's child and Garibaldi left her the same day. At the beginning of April 1860, uprisings in Messina and Palermo in the Kingdom of the Two Sicilies provided Garibaldi with an opportunity. He gathered a group of volunteers called i Mille (the Thousand), or the Redshirts as popularly known, in two ships named Il Piemonte and Il Lombardo, and left from Quarto, in Genoa, on 5 May in the evening and landed at Marsala, on the westernmost point of Sicily, on 11 May.

Swelling the ranks of his army with scattered bands of local rebels, Garibaldi led 800 volunteers to victory over an enemy force of 1,500 at the Battle of Calatafimi on 15 May. He used the counter-intuitive tactic of an uphill bayonet charge. He saw that the hill was terraced, and the terraces would shelter his advancing men. Though small by comparison with the coming clashes at Palermo, Milazzo, and Volturno, this battle was decisive in establishing Garibaldi's power on the island. An apocryphal but realistic story had him say to his lieutenant Nino Bixio, "Here we either make Italy, or we die." His Neapolitan adversaries now fought for him, which led to accusations of bribery being made against their leader, Francesco Landi.

The next day, he declared himself dictator of Sicily in the name of Victor Emmanuel II of Italy. He advanced to the outskirts of Palermo, the capital of the island, and launched a siege on 27 May. He had the support of many inhabitants, who rose up against the garrison, but before they could take the city, reinforcements arrived and bombarded the city nearly to ruins. At this time, a British admiral intervened and facilitated a truce, by which the Neapolitan royal troops and warships surrendered the city and departed. The young Henry Adams —later to become a distinguished American writer—visited the city in June and described the situation, along with his meeting with Garibaldi, in a long and vivid letter to his older brother Charles. Historians Clough et al. argue that Garibaldi's Thousand were students, independent artisans, and professionals, not peasants. The support given by Sicilian peasants was not out of a sense of patriotism but from their hatred of exploitive landlords and oppressive Neapolitan officials. Garibaldi himself had no interest in social revolution and instead sided with the Sicilian landlords against the rioting peasants.

By conquering Palermo, Garibaldi had won a signal victory. He gained worldwide renown and the adulation of Italians. Faith in his prowess was so strong that doubt, confusion, and dismay seized even the Neapolitan court. Six weeks later, he marched against Messina in the east of the island, winning a ferocious and difficult Battle of Milazzo. By the end of July, only the citadel resisted.

Having conquered Sicily, he crossed the Strait of Messina and marched north. Garibaldi's progress was met with more celebration than resistance, and on 7 September he entered the capital city of Naples, by train. Despite taking Naples, however, he had not to this point defeated the Neapolitan army. Garibaldi's volunteer army of 24,000 was not able to conclusively defeat the reorganized Neapolitan army—about 25,000 men—on 30 September at the Battle of Volturno. This was the largest battle he ever fought, but its outcome was effectively decided by the arrival of the Royal Sardinian Army.

Meanwhile, Garibaldi's victories started to cause disquiet to the Piedmont, and particularly the Sardinian Prime Minister, Camillo Benso, Count of Cavour. He feared that, should the revolutionaries succeed in conquering the entire Neapolitan state, they would then invade the Papal States, which would lead to France intervening. The Piedmontese themselves had conquered most of the Pope's territories in their march south to meet Garibaldi, but they had deliberately avoided Rome, the capital of the Papal state. Garibaldi deeply disliked Cavour. To an extent, he simply mistrusted Cavour's pragmatism and realpolitik, but he also bore a personal grudge for Cavour's trading away his home city of Nice to the French the previous year. On the other hand, he supported the Sardinian monarch, Victor Emmanuel II, despite his dislike of royalty, who he admired as a champion of Italian independence. In his famous meeting with Victor Emmanuel at Teano on 26 October 1860, Garibaldi greeted him as King of Italy and shook his hand. Garibaldi rode into Naples at the king's side on 7 November, then retired to the rocky island of Caprera, refusing to accept any reward for his services.