The HMAS Sydney II was an Australian light cruiser that served during World War II. Commissioned in 1940, it was part of the Royal Australian Navy and played a significant role in various naval operations in the Pacific theater. The ship was equipped with advanced weaponry for its time and was known for its speed and agility. Tragically, the HMAS Sydney II was sunk in November 1941 during a battle with the German raider Kormoran. The loss of the ship resulted in the deaths of 645 crew members, making it one of the most significant maritime disasters in Australian naval history. The wreck was discovered off the coast of Western Australia in 2008.