In 1968, Italian engineer Giorgio Rosa completed a 400-square-meter artificial platform in the Adriatic Sea, situated 11. 6 kilometers off the coast of Rimini. Located roughly 500 meters beyond Italy's territorial waters at the time, Rosa declared the platform an independent sovereign state named the Republic of Rose Island.
The platform featured a restaurant, bar, nightclub, souvenir shop, and post office, complete with its own official language, Esperanto, currency, and postage stamps. Rosa's creation quickly attracted tourists and draft evaders, sparking intense concern from the Italian government. Italian authorities feared the platform was a cover for tax evasion, illegal radio broadcasting, and a potential Soviet submarine haven during the Cold War.
Despite Rosa's legal argument that the platform rested in international waters and fell outside Italian jurisdiction under the 1958 Geneva Convention on the High Seas, Rome took swift, unprecedented action. On November 12, 1968, Italian commercial police and military forces assumed control of the platform, effectively blockading it. The Italian government justified its sovereign intervention by declaring that the platform was constructed without authorization on the continental shelf, asserting economic and security rights over contiguous waters.
In February 1969, Italian Navy clearance divers placed explosives on the structural pillars and detonated the platform. When the initial blasts failed to sink the sturdy iron structure, a subsequent storm eventually submerged the remaining debris. The event stands as Italy's only official war of aggression, sparking international legal debates regarding maritime sovereignty and artificial islands.