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.
A record 130,000 police, soldiers, navel personnel and security guards have been drafted in to combat the terrorist threat after a gang of alleged ISIS operatives were arrested in Brazil earlier this month. The ring of steel has been enforced with back up from the US Bureau of Diplomatic Security, which has been advising Olympic officials in the fight to prevent carnage at the games and protect athletes and sports fans.
Leading the fleet: Frigate Rademaker is the most powerful of the Brazilian navy ships stationed on patrol off the Copacabana beach
Shore safety: Brazil's navy has started using its fleet, including a frigate armed with anti-ship torpedoes and naval guns and this stealth-built patrol vessel, to patrol off Copacabana beach, where the beach volleyball will be held
Up in the air: Federal police are using helicopters for surveillance of the Games from the air for terrorist action
Deployed: An infantry unit guarding the Olympic Tennis Center in the Barra Olympic Park, to the west of Rio
Armed and ready: Police units as well as army units are deployed in front of the Copacaban venue
Ready for combat: Infantry armed with shotguns and semi-automatic rifles are patrolling outside the Copacabana beach's temporary beach volleyball venue
Drill time: Soldiers rappel from a helicopter as they take part in a drill ahead of the games opening next Friday
On guard: Brazilian soldiers patrol Ipanema Beach as security efforts are stepped up, with 88,000 police and military deployed
Brazil has been warned that the threat of terrorism at the games is high and the US has helped with assessing the threat level and on how to protect lives and venues.
The warship was formally called HMS Battleaxe and was built for the British Royal Navy. Brazil bought it in 1997 renamed it the Rademaker.
Its armaments includes machinery to fire four torpedoes simultaneously, and has four Exocet missile launchers, two 40mm Bofors anti-aircraft guns and two 20mm canons.
There is also a launch pad for two helicopters to enable security teams to hover above the bay and carry out surveillance.
Security chiefs decided to bring in the warship in the knowledge that terrorists have slaughtered innocent civilians several times on beaches.
One of the most devastating attacks from a beach happened in November 2008 when Islamic terrorists who were members of Lashkar-e-Taiba, emerged from a boat at Mumbai and went onto unleash a night of terror on the Indian film capital, killing 164 people and wounding more than 300.
In June last year,at Port el Kantaoui on the outskirts of Sousse, Tunisia, 38 people were slaughtered by a gunman disguised as a holidaymaker who opened fire with a Kalashnikov after hiding it in a beach parasol.
On France's Bastille day holiday earlier this month, 84 people were murdered when a terrorist drove a truck along the promenade and into them.
Thousands of people will be partying on the famous sands of the Copacabana each night during the Olympics and dining out in the many restaurants.
Armed welcome: The official reception volunteers for the Games are all under armed guard at Rio airport
Precautions: The risk of an attack at the airport - ISIS-linked terrorists have carried out such attacks in Brussels and Istanbul - has prompted a massive army presence at Rio international
Prepared: Soldiers and their armored personnel carrier stand guard close to the main set of Olympic venues
In the sights: The statue of Christ the Redeemer, Rio's most recognizable site, is visible behind two of the country's soldiers as they guard Botafogo beach in the city
Specialist: Among the forces deployed are elite troops Brazilian Air force paratroopers equipped for urban warfare with night vision and SG-551 short-barrel carbines
Welcome: Volunteers waiting to free athletes at Rio's international airport are guarded by a soldier
Under gun guard: A soldier stands ready at the city's international airport, where tens of thousands of athletes are beginning to arrive for the Games, which start on Friday 5 August
Ready for anything: Among the drills carried out by police and the military are exercises in dealing with the aftermath of a chemical or biological attack
Police see the beaches in the Olympic city as extremely vulnerable areas and easy targets as the official Olympic venues are openly protected and only accessible with approved accreditations and tickets after thorough vetting.
Cutting-edge high tech cameras are monitoring crowds and police and army snipers will survey crowds for suspicious acitivity.
A US military tested high-resolution imaging system called Simera, produced by American specialists Logos Technologies, will assist with real time video surveillance in a 40-square kilometer area between beaches and four main venues.
Olympic chiefs have had to establish a security operation which maintains the safety of the world's greatest athletes and supporters without restricting the enjoyment of them and the watching global audience.
A dozen sympathizers of the Islamic State have been arrested after they were accused of discussing a possible attack on the Games and a suspected Hezbollah sympathizer and member was held in Sao Paulo earlier this week.
The Secretary of Security for of Rio de Janeiro, José Mariano Beltrame, said:'We are ready, the plans are finished.'
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