Welcome to the first Olympics in the shadow of ISIS: Rio prepares for Games with a warship on the Copacabana, troops on the streets and chemical attack drills as $900 million security operation begins

This is the warship stacked with missiles and an arsenal of lethal weaponry that is leading the show of force ahead of the first Olympics Games held in the shadow of ISIS terrorism.

Brazil is using the frigate, and a small fleet of other vessels to patrol the waters around tourist hot spot Copacabana Beach – where some of the thousands of sport loving fans will visit Rio during the world’s biggest sporting event, when it begins next week.