World War I: With a brave action carried out into the waters of the Austro-Hungarian port of Pula, two officers of the Italian Regia Marina sink with a manned torpedo the enemy battleship SMS Viribus Unitis.

Pula, also known as Pola, its Italian name, is the largest city in Istria County, western Croatia, and the seventh-largest city in the country, situated at the southern tip of the Istrian peninsula in western Croatia, with a population of 52,220 in 2021. It is known for its multitude of ancient…