EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Suspected migrant and refugee smugglers react as Greek police officers (not seen) ask them to stop after dropping off a load of Syrian refugees at a remote beach on the Greek island of Lesbos September 20, 2015. REUTERS/Yannis Behrakis 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Suspected migrant and refugee smugglers power their speed boat back towards Turkey after dropping off a load of Syrian refugees at a remote beach on the Greek island of Lesbos September 20, 2015. REUTERS/Yannis Behrakis 

A motorboat sails along the Yenisei river in the Taiga area outside Siberian city of Krasnoyarsk, Russia, September 19, 2015. Picture taken September 19, 2015. REUTERS/Ilya Naymushin 

More than 20 migrants onboard a dinghy with a broken motor and two shovels try to return back to Turkey as they drift while attempting to reach the Greek Island of Kos after leaving Bodrum, Turkey, September 20, 2015. Many refugees attempt to use Turkey as a springboard into wealthier Europe. REUTERS/Umit Bektas 

Swiss boat Norgador with Jean-Pierre Ziegert de Siebenthal and Arnaud Psarofaghis sails on Lake Leman before a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse

French boat Groupama with Franck Cammas and Louis Viat sails on Lake Leman during a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse

Swiss boat Axon Racing (R) with Benoit Maire and Benoit Morelle sails behind Swiss boat Norgador with Jean-Pierre Ziegert de Siebenthal and Arnaud Psarofaghis on Lake Leman with the Jet d'eau in the background before a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse

French boat Groupama with Franck Cammas and Louis Viat trains on Lake Leman with the Jet d'eau (water fountain) in the background before a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse

French boat Groupama with Franck Cammas and Louis Viat trains on Lake Leman with the Jet d'eau (water fountain) in the background before a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse

Swiss boat Axon Racing (R) with Benoit Maire and Benoit Morelle sails ahead of French boat Groupama with Franck Cammas and Louis Viat on Lake Leman and the Mont-Blanc mountain in the background during a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse

French boat Groupama leader Franck Cammas (L) holds a bottle next to team mate Louis Viat on Lake Leman before a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse

French boat Groupama with Franck Cammas and Louis Viat trains on Lake Leman before a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse

French boat Groupama with Franck Cammas and Louis Viat trains on Lake Leman with the Jet d'eau (water fountain) in the background before a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse 

French boat Groupama with Franck Cammas and Louis Viat trains on Lake Leman with the Jet d'eau (water fountain) in the background before a qualification regata of the 27th Little Cup yachting race in Geneva, Switzerland, September 17, 2015. The Little Cup is taking place every two years and serves as a testing ground for its biggest sister the America's Cup. Nine teams compete on C Class catamarans which carry two team members and must measure 7,62 m by 4,26 m at most. In addition, their sail area must not exceed 27.8 m2, they can achieve three times the speed of the wind with a maximum speed achieved of 34 knots (62.97 km/h). REUTERS/Denis Balibouse

A speed boat and a sail boat pass as the USS Ronald Reagan, a Nimitz-class nuclear-powered super carrier, departs for Yokosuka, Japan from Naval Station North Island in San Diego, California August 31, 2015. The Reagan is replacing the USS George Washington as part of a complicated three-carrier swap that exchanges crews for ships, saving the Navy millions in moving costs. REUTERS/Mike Blake 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A yacht speeds as Iranian migrants paddle an engineless dinghy trying to cross a part of the Aegean sea from the Turkish coast (seen in the background) to the Greek island of Kos August 15, 2015. United Nations refugee agency (UNHCR) called on Greece to take control of the "total chaos" on Mediterranean islands, where thousands of migrants have landed. About 124,000 have arrived this year by sea, many via Turkey, according to Vincent Cochetel, UNHCR director for Europe. . REUTERS/Yannis Behrakis 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A luxury yacht speeds as Iranian migrants paddle an engineless dinghy trying to cross a part of the Aegean sea from the Turkish coast (seen in the background) to the Greek island of Kos August 15, 2015. United Nations refugee agency (UNHCR) called on Greece to take control of the "total chaos" on Mediterranean islands, where thousands of migrants have landed. About 124,000 have arrived this year by sea, many via Turkey, according to Vincent Cochetel, UNHCR director for Europe. . REUTERS/Yannis Behrakis TPX IMAGES OF THE DAY 

A speed boat sails in the Strait of Gibraltar, in Gibraltar, August 10, 2015. The British government on Sunday accused Spain of violating its sovereignty over Gibraltar, saying Spanish state vessels had repeatedly and unlawfully entered its territorial waters without notifying it. REUTERS/Jon Nazca 

A speed boat sails in the Strait of Gibraltar, in Gibraltar, August 10, 2015. The British government on Sunday accused Spain of violating its sovereignty over Gibraltar, saying Spanish state vessels had repeatedly and unlawfully entered its territorial waters without notifying it. REUTERS/Jon Nazca 

Members of the Chinese team take part in the Open Water competition for pontoon bridge units as part of the International Army Games-2015 in the town of Murom, Russia, August 8, 2015. REUTERS/Maxim Zmeyev 

People sunbathe on the beach as boats are anchored offshore in Santa Barbara, California July 30, 2015. Picture taken July 30, 2015. REUTERS/Patrick T. Fallon 

A military security exercise is seen at the naval base of Toulon, southern France, July 27, 2015. REUTERS/Claude Paris/Pool 

A military security exercise is seen at the naval base of Toulon, southern France, July 27, 2015. REUTERS/Claude Paris/Pool 

A military security exercise is seen at the naval base of Toulon, southern France, July 27, 2015. REUTERS/Claude Paris/Pool 

A military security exercise is seen at the naval base of Toulon, southern France, July 27, 2015. REUTERS/Claude Paris/Pool 

A cargo ship is seen crossing through the New Suez Canal, Ismailia, Egypt, July 25, 2015. The first cargo ships passed through Egypt's New Suez Canal on Saturday in a test-run before it opens next month, state media reported, 11 months after the army began constructing the $8 billion canal alongside the existing 145-year-old SuezCanal. Mohab Mameesh, chairman of the Suez Canal Authority overseer of the project, told state television that this test-run had been a success and that more would follow.
REUTERS/Stringer 

Security personnel cross through the New Suez Canal, Ismailia, Egypt, July 25, 2015. The first cargo ships passed through Egypt's New Suez Canal on Saturday in a test-run before it opens next month, state media reported, 11 months after the army began constructing the $8 billion canal alongside the existing 145-year-old SuezCanal. Mohab Mameesh, chairman of the Suez Canal Authority overseer of the project, told state television that this test-run had been a success and that more would follow.
REUTERS/Stringer 

Civil protection forces try to extinguish trees that have caught fire around Al Kasr El Aini hospital and Grand Grand Nile Tower hotel at Cornish El Nile in downtown Cairo, Egypt, June 26, 2015. The exact cause of the fire has yet to be confirmed and no casaulties have been reported yet, according to the Deputy Director of Civil Protection in Cairo Gamal Halawa. REUTERS/Amr Abdallah Dalsh 

Crew member Paul Mullen Jr. looks out at the ice as the Warren Jr., a 150 foot offshore supply boat, works as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts, March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Crew member Paul Mullen Jr. looks out at the ice as the Warren Jr., a 150 foot offshore supply boat, works as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Crew member John Mann looks out at the ice as the Warren Jr., a 150 foot offshore supply boat, works as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

The bow of the Warren Jr., a 150 foot offshore supply boat, cuts a path through the ice as it works as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

The Warren Jr., a 150 foot offshore supply boat, cuts a path through the ice as it works as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts, March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Ben Macdonald (L) pilots the Warren Jr., a 150 foot offshore supply boat, as it cuts a path through the ice working as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts, March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Ben Macdonald pilots the Warren Jr., a 150 foot offshore supply boat, as it cuts a path through the ice working as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts, March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

The Warren Jr., a 150 foot offshore supply boat, cuts a path through the ice as it works as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

The Warren Jr., a 150 foot offshore supply boat, cuts a path through the ice as it works as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

The Warren Jr., a 150 foot offshore supply boat, cuts a path through the ice as it works as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts, March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

A canoeist negotiates a rapid during the Dusi Canoe Marathon in Pietermaritzburg, February 19, 2015. The 120-kilometre event is held over three days from Pietermaritzburg to Durban. REUTERS/Rogan Ward (SOUTH AFRICA - Tags: SPORT CANOEING) 

A Ranger soldier (R) walks past an oil tanker, after it skidded and crashed on the side grill of a bridge, in Karachi July 12, 2014. A tanker carrying 8000 liters of diesel, skidded and crashed due to speeding, according to local media. There were no reports of any casualties. REUTERS/Akhtar Soomro (PAKISTAN - Tags: TRANSPORT DISASTER TPX IMAGES OF THE DAY) 

A family member of a passenger missing after the South Korean ferry "Sewol" capsized is blocked by police during a protest in Jindo calling for a meeting with President Park Geun-hye and demanding the search and rescue operation be speeded up, April 20, 2014. South Korean divers retrieved three bodies from inside the sunken ferry overnight, officials said on Sunday, the first time they have been able to gain entry to the passenger section of the ship. REUTERS/Kim Kyung-Hoon (SOUTH KOREA - Tags: DISASTER MARITIME CIVIL UNREST TPX IMAGES OF THE DAY) 

Catherine (C), Duchess of Cambridge, and her husband, Britain's Prince William (centre, 2nd L), laugh as they take a jet-boat ride on the Shotover River in Queenstown April 13, 2014. Prince William and his wife are undertaking a 19-day official visit to New Zealand and Australia with their son, Prince George. REUTERS/Phil Noble (NEW ZEALAND - Tags: SOCIETY ROYALS TPX IMAGES OF THE DAY) 

A long exposure picture of boats passing by a business area along the Pearl River in Guangzhou, Guangdong province, March 22, 2014. China's economy may still grow around 7.5 percent this year despite signs of a slowdown, and there is no immediate need for the government to roll out fresh stimulus measures, Asian Development Bank (ADB) President Takehiko Nakao said on March 24, 2014. Picture taken March 22, 2014. To match Interview ADB-CHINA/NAKAO REUTERS/Alex Lee (CHINA - Tags: BUSINESS CITYSCAPE) 

A view from the cockpit during a high speed sail aboard the restored antique ice sailing boat "Ice Queen" on the frozen Hudson River near Astor Point in Barrytown, New York, March 7, 2014. Ice sailors on the upper Hudson river are enjoying one of the best and longest seasons of sailing in recent memory as arctic temperatures for much of the winter in the Northeast United States have built deep ice packs allowing sailors to launch their heavy antique wooden boats. REUTERS/Mike Segar (UNITED STATES - Tags: SPORT ENVIRONMENT) 

A member of the crew of a bulk freighter prepares his ship to receive tons of earth generated by the construction of Crossrail, at a jetty on the Thames in east London, December 17, 2013. Crossrail, the largest infrastructure project in Europe which will provide a new link across London, has reached the half-way stage. The 15 billion pound ($25 billion) project, due to open in 2018, will connect London's Heathrow airport west of London to the county of Essex in the east in a bid to speed up connections and relieve pressure on London's crowded underground rail network. Work began in 2009 and digging the new tunnels has uncovered a range of archaeological finds including 20 Roman skulls and a graveyard which could hold the remains of some 50,000 people killed by the plague more than 650 years ago. Picture taken December 17, 2013. REUTERS/Andrew Winning (BRITAIN - Tags: BUSINESS EMPLOYMENT SOCIETY TRAVEL CONSTRUCTION)

ATTENTION EDITORS: PICTURE 26 OF 28 FOR PACKAGE 'TUNNELLING UNDER LONDON' TO FIND ALL IMAGES SEARCH 'WINNING CROSSRAIL' 

A police boat washed ashore during Typhoon Haiyan lies in front of a damaged Catholic church in Tacloban November 14, 2013. Philippine President Benigno Aquino was under growing pressure on Thursday to speed up the distribution of food, water and medicine to desperate survivors of the powerful typhoon and to get paralysed local governments functioning. REUTERS/Bobby Yip (PHILIPPINES - Tags: DISASTER ENVIRONMENT MARITIME RELIGION) 

A passenger speed boat sails along the Yenisei River during sunset outside Russia's Siberian city of Krasnoyarsk, October 3, 2013. Picture taken October 3, 2013. REUTERS/Ilya Naymushin (RUSSIA - Tags: ENVIRONMENT TRANSPORT) 

A boy practices flyboarding at the beach of Magaluf, in Palma de Mallorca, one of the Spanish Balearic islands, August 22, 2013. The Flyboard is an ingenious invention which consists of a board fitted with shoes that the user wears and is attached to a watercraft on the other end that powers up the board to propel the user upwards into the air and dive in and out of the water. Flyboarding is inspired from a mix of extreme sports such as jet-skiing, snowboarding and acrobatic diving. REUTERS/Enrique Calvo(SPAIN - Tags: SPORT SOCIETY) 

Philippine Navy men wait on their speed boats as divers look for the bodies in the passenger ferry that sunk 150 feet below in the seas off the waters in Talisay, Cebu in central Philippines August 17, 2013. Worsening weather and sea conditions on Saturday forced the Philippines to suspend a search for survivors of a ferry disaster that killed at least 32 people and left 170 missing, authorities said. The ferry sank on Friday after a collision just outside the central port of Cebu with a cargo vessel owned by a company involved in the world's worst peacetime maritime disaster nearly 30 years ago. REUTERS/Erik De Castro (PHILIPPINES - Tags: DISASTER MARITIME) 

A U.S. Navy officer stands guard as the Riverine Command Boat speeds past with members of the media onboard during a media tour ahead of the International Mine Countermeasures Exercise (IMCMEX), at the Bahrain Navy sea port in Manama May 12, 2013. Representatives from more than 40 nations will gather in Bahrain and waters of the Gulf region for the exercise, which is considered the largest exercise of its kind in the region. A British Royal Navy spokesperson said that it will be the first time for the British Royal Navy to head the entire exercise. REUTERS/Hamad I Mohammed (BAHRAIN - Tags: POLITICS MILITARY MARITIME) 

South Africa's Matt Silver-Vallance floats above the sea using helium filled balloons from the airfield of Robben Island across the Atlantic Ocean in Cape Town April 6, 2013. Vallance made the 7 km flight to raise funds and awareness for the Nelson Mandela Children's Hospital. Mandela left hospital on Saturday after more than a week of treatment of pneumonia that raised global concern about the health of the 94-year-old anti-apartheid leader. REUTERS/Mark Wessels (SOUTH AFRICA - Tags: POLITICS SOCIETY TPX IMAGES OF THE DAY) 

A pod of spinner dolphins swims near fishing boats off the coast of Mirissa, in southern Sri Lanka, March 29, 2013. The southern tip of Sri Lanka, where the deep waters of the continental shelf is close to the shore, is one of the few locations in the world to see dolphins, whales and other creatures of the deep. Since the end of the 25 years civil war in 2009, tourists are returning to the island to enjoy its natural beauty. Picture taken March 29, 2013. REUTERS/David Loh (SRI LANKA - Tags: ANIMALS TRAVEL SOCIETY) 

Agents of the Dominican Republic's National Drug Control Administration (DNCD) stand guard over 1,630 packets of cocaine weighing a total of some 1,909 kgs (4,208 lbs) that were confiscated from a speed boat off the eastern coast, in Santo Domingo March 27, 2013. The DNCD, working along with the United States DEA, captured the boat along with two Colombian nationals and the drugs on Tuesday night, the DNCD said in a news release. REUTERS/Ricardo Rojas (DOMINICAN REPUBLIC - Tags: CRIME LAW DRUGS SOCIETY) 

Colombian national Andres Ramirez Quiroz stands in front of packets of cocaine as he is presented by the Dominican Republic's National Drug Control Administration (DNCD) during a news conference in Santo Domingo March 27, 2013. The DNCD, working along with the United States DEA, captured a speed boat off the eastern coast along with two Colombian nationals and over 1,630 packets of confiscated cocaine weighing a total of some 1,909 kgs (4,208 lbs), on Tuesday night, the DNCD said in a news release. REUTERS/Ricardo Rojas (DOMINICAN REPUBLIC - Tags: CRIME LAW DRUGS SOCIETY) 

An agent of the Dominican Republic's National Drug Control Administration (DNCD) guards packets of cocaine weighing a total of some 1,909 kgs (4,208 lbs) that were confiscated from a speed boat off the eastern coast, in Santo Domingo March 27, 2013. The DNCD, working along with the United States DEA, captured the boat along with two Colombian nationals and the drugs on Tuesday night, the DNCD said in a news release. REUTERS/Ricardo Rojas (DOMINICAN REPUBLIC - Tags: CRIME LAW DRUGS SOCIETY) 

An agent of the Dominican Republic's National Drug Control Administration (DNCD) stands guard over Colombian national Andres Ramirez Quiroz (R) as he is presented during a news conference in Santo Domingo March 27, 2013. The DNCD, working along with the United States DEA, captured a speed boat off the eastern coast along with two Colombian nationals and more than 1,630 packets of confiscated cocaine weighing a total of some 1,909 kgs (4,208 lbs) on Tuesday night, the DNCD said in a news release. REUTERS/Ricardo Rojas (DOMINICAN REPUBLIC - Tags: CRIME LAW DRUGS SOCIETY) 

Agents of the Dominican Republic's National Drug Control Administration (DNCD) inspect more than 1,630 packets of cocaine weighing some 1,909 kgs (4,208 lbs) that they confiscated from a speed boat off the eastern coast, in Santo Domingo March 27, 2013. The DNCD, working along with the United States DEA, captured the boat along with two Colombian nationals and the drugs on Tuesday night, the DNCD said in a news release. REUTERS/Ricardo Rojas (DOMINICAN REPUBLIC - Tags: CRIME LAW DRUGS SOCIETY) 

A boat guide drives a speed boat as oil slick splashes on the water through the Bodo creek in Ogoniland near Nigeria's oil hub city of Port Harcourt December 4, 2012. Despite billions of dollars worth of oil flowing out of Nigeria South East, life for the majority of Niger Delta's inhabitants remains unchanged. Most people live in modest iron-roofed shacks, and rely on farming or fishing, their only interaction with the oil industry being when they step over pipelines in the swamps - or when a spill blights their landscape. Picture taken December 4, 2012. REUTERS/Akintunde Akinleye (NIGERIA - Tags: SOCIETY BUSINESS ENVIRONMENT ENERGY TRANSPORT)

ATTENTION EDITORS: PICTURE 20 OF 29 FOR PACKAGE 'LIFE IN THE NIGER DELTA'
SEARCH 'AKINTUNDE DELTA' FOR ALL IMAGES 

A boat drives at full speed on the Sulina channel of the Danube delta in Crisan village, 410 km (255 miles) east of Bucharest September 19, 2012. The Danube delta, one of the most biodiverse regions in Europe, is made up of various lakes and vast marshlands, featuring over 300 species of birds and 45 freshwater fish species. Picture taken September 19, 2012. REUTERS/Radu Sigheti (ROMANIA - Tags: TRANSPORT ENVIRONMENT SOCIETY)