TIn 1939, Siam (now Thailand) placed on order for a pair of general-purpose light cruisers which were to be built in Italian yards. These hulls were subsequently taken over by Italy in 1942, with plans to complete them as anti-aircraft cruisers which could also also serve as flagships. Designated the Etna-class, the two ships were to be equipped with six 152mm guns in three updated dual-purpose twin mounts. In addition, ten of the equally new 65mm heavy anti-aircraft guns currently being designed for the Capitani Romani-class of light cruisers would also be carried, backed by a large number of lighter anti-aircraft guns. Both ships were still under construction when they were captured by German troops after the surrender of Italy in 1943. To prevent their use by the Germans, the ship was sunk by the retreating Italians.