Deployed: An infantry unit guarding the Olympic Tennis Center in the Barra Olympic Park, to the west of Rio
Daily Mail: 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
* Massive security in Rio de Janiero with a week to go until the start of the Olympic Games
* Brazilian army and navy have been deployed over fears of terror attack with an alleged ISIS plot already broken up
* 88,000 military personnel and police are involved in security operation - double the level at London 2012 games
* Preparations already in place include a frigate stationed close to Copacabana Beach, which will host events including beach volleyball
* Soldiers are on guard at the airport where athletes have started to arrive
* Army, navy and marines have all conducted drills for hostage rescue and bomb attempts
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.
Brazil is spending almost $900 million on protecting the Olympics from terrorist attack and the 500,000 foreign visitors expected in Rio for the games.
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