U.S. Navy divers assigned to Explosive Ordnance Disposal Mobile Unit 11, Mobile Diving Salvage (MDS) 11-7, survey HMAS "Perth" (D29) during dive operations held in support of search and survey operations of the sunken World War II navy vessels USS "Houston" (CA-30) and "Perth". The data collected by the dive exercise will help the U.S. embassy in Indonesia and Naval Historical Heritage Command catalog the current state of the wrecks. Both cruisers were sunk in the Battle of Sunda Strait in Banten Bay, Indonesia, on 1 March 1942.