A team of armed Singapore's Naval Diving Unit (NDU) rappel from a Singapore Air Force Super Puma helicopter on board a merchant ship during the Exercise Deep Sabre 2005 military exercises on the South China Sea off Singapore, 17 August 2005. US-led naval forces and Singapore security forces along with several allied nations staged a deep sea exercise in the South China Sea off Singapore to demonstrate a mock interception of weapons of mass destruction being transported by suspected terrorists.(AFP/File/Roslan Rahman)
