Operation Opossum was a World War II raid undertaken by Australia's Z Special Unit in 1945 on the island of Ternate near Borneo to rescue the Sultan of Ternate, Iskander Muhammad Jabit Syah.The mission was authorised by General Douglas MacArthur who was worried about the Sultan's life. The Sultan had been sympathetic to the Allied cause.Z Special Unit sent a contingent of 13, mostly Australians and two Indonesian recruits from West Timor and North Sulawesi.