The South of Italy and Unification
In March of 1860, there was a plebiscite that approved of annexation to Piedmont, which won overwhelming support from Tuscany.
However, in April, the government declared that France would receive Nice and Savoy, causing outrage in the Italian nationalists.
When the radicals and democrats learned of the insurrection in Palermo against the Bourbon rule, they took the opportunity to releaunch a unification plan and get rid of the monarchist solutions created by Cavour and Victor Emmanuel II from the North.
In May, the radicals depended on Garibaldi's thousand volunteers to Sicily on steamboats, which left at Marsala.
At Calatafimi, Garibaldi's victory in defeating a small Bourbon force was the signal for peasant revolts and insurrections throughout the island, which threatened the line of communication for the Bourbon army, forcing them to retreat.
In August, Garibaldi crossed to the mainland and landowners abandoned the Bourbon monarchy to take control of the local government.
On September 7th, Francis II, the young king of Naples, decided to make a stand north of the capital, allowing Garibaldi to enter Naples effortlessly.
Meanwhile, in Turin, Cavour tried his best to prevent radicals from gaining control, and also to prevent Garibaldi from liberating Rome. Cavour fears that Garibaldi's plan might lead to war because the Napoleon III promised to protect the pope at all costs.
Cavour had to make a quick decision. He sent the Piedmontese army, with Victor Emmanuel II in control, to invade the Papal states and "protect the pope", but really to prevent Garibaldi from advancing.
Surrounded by the Piedmontese army and Garibaldi's supporters, the Bourbon army sued for terms.
On October 26th at Teano, one of the most memorable moments of the Risorgimento occured when Garibaldi loyally surrendered his command to the king, Victor Emmanuel II. This meant that the danger of the Piedmontese forces clashing with the nationalists was now avoided.
From October to November, plebiscites were quickly organized, and the southern provinces, Sicily and former Papal States all voted for annexation to Piedmont.