These four ships were laid down in 1917 at the Orlando shipyard in Livorno, but were not finally completed until 1921-1923.
The 4th Piedmontese Division under general Enrico Cialdini took position between Palestro and the road to Robbio, with the 10th Infantry Regiment on his left, the 9th Regiment defending Cascina San Pietro, and the 3rd Zouaves Regiment on his right flank, on an island in the river known as Sesietta.
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On 30 May the Piedmontese crossed the Sesia river and, after a hard fight, managed to take control of Palestro, Vinzaglio, and Confienza.
Following the months after Riina's arrest, there were a series of bombings by the Corleonesi against several tourist spots on the Italian mainland – the Via dei Georgofili in Florence, Via Palestro in Milan and the Piazza San Giovanni in Laterano and Via San Teodoro in Rome, which left 10 people dead and 71 injured as well as severe damage to centres of cultural heritage such as the Uffizi Gallery.
The town was named Palestro when it was founded in 1860, it was named in honour of the Franco-Piedmontese victory over Austria at Palestro in 1859 during the Second Italian War of Independence.