Two F-22 Raptor fighter jets of the 95th Fighter Squadron from Tyndall, Florida approach the refuelling nozzle of a KC-135 Stratotanker from the 100th Air Refueling Wing at the Royal Air Fore Base in Mildenhall in Britain as they fly over the Baltic Sea towards the newly established NATO airbase of Aemari, Estonia September 4, 2015. Four F-22 Raptors and some 60 airmen were deployed to Spangdahlem Air Base, western Germany, to train with allied air forces such as Poland and Estonia. The first-ever training deployment of the 5th fighter generation to Europe is part of the European Reassurance Initiative. (Photo by Wolfgang Rattay/Reuters)





The head-up display of a F-22 Raptor fighter jet reflects the sun light as a pilot of the 95th Fighter Squadron from Tyndall, Florida is seen during refuelling by a KC-135 Stratotanker from the 100th Air Refueling Wing at the Royal Air Force Base in Mildenhall in Britain as they fly over the Baltic Sea towards Spangdahlem airbase, Germany September 4, 2015. (Photo by Wolfgang Rattay/Reuters)





A F-22 Raptor fighter jet of the 95th Fighter Squadron from Tyndall, Florida approaches a KC-135 Stratotanker from the 100th Air Refueling Wing at the Royal Air Force Base in Mildenhall in Britain as they fly over the Baltic Sea towards the newly established NATO airbase of Aemari, Estonia September 4, 2015. (Photo by Wolfgang Rattay/Reuters)





A F-22 Raptor fighter jet of the 95th Fighter Squadron from Tyndall, Florida is seen during refuelling by a KC-135 Stratotanker from the 100th Air Refueling Wing at the Royal Air Force Base in Mildenhall in Britain as they fly over the Baltic Sea towards Spangdahlem airbase, Germany September 4, 2015. (Photo by Wolfgang Rattay/Reuters)





Eric Kordus, a F-22 Raptor fighter jet pilot of the 95th Fighter Squadron from Tyndall, Florida, carries “Mr. Bone”, the squadron's mascot consisting of a dressed-up plastic skeleton with a stovepipe hat and a moustache, after a refuelling mission of a KC-135 Stratotanker from the NATO airbase of Aemari, Estonia to Spangdahlem, Germany September 4, 2015. (Photo by Wolfgang Rattay/Reuters)





A woman works on a pinata of former Guatemalan Vice President Roxana Baldetti in a pinata store in downtown Guatemala City, September 4, 2015. Baldetti is linked to criminal proceedings on charges of conspiracy and fraud. A number of corruption investigations devastated the former President Otto Perez's cabinet and led to her resignation in May. Baldetti was arrested in August 2015, on suspicion of illicit association, bribery and fraud linked to the customs scheme. Baldetti has denied any wrongdoing. (Photo by Jorge Dan Lopez/Reuters)





Dominika Cibulkova of Slovakia hits the court with her racket after losing a point to Eugenie Bouchard of Canada during their women's singles third round match at the U.S. Open Championships tennis tournament in New York, September 4, 2015. (Photo by Mike Segar/Reuters)





Girls hold national flags while they attend the opening ceremony of the new school year at a school in Hanoi September 5, 2015. Schools in Vietnam reopened on Saturday, with around 22 million children heading back to classrooms after a three-month summer break, local newspapers reported. (Photo by Reuters/Kham)





Children attend the opening ceremony of the new school year at a school in Hanoi September 5, 2015. (Photo by Reuters/Kham)





An arrested suspect of the recent Bangkok blast is detained by police officer as he leaves at court Bangkok, Thailand, September 5, 2015. Forensic tests on two suspects have failed to find a link to the site of Thailand's deadliest bomb attack, police said on Friday, dealing a blow to the investigation. (Photo by Athit Perawongmetha/Reuters)





People look at inflated spheres in MacArthur Park Lake, which are part of Portraits of Hope's exhibition “Spheres at MacArthur Park”, in Los Angeles, California September 4, 2015. The installation will feature about 3,000 inflatable hand-painted spheres. (Photo by Mario Anzuoni/Reuters)





People holding torches walk on a mountain trail during a trekking event to mark the 70th anniversary of the end of World War Two, in Qinglong county, Guizhou province, September 4, 2015. Around 2974 people participated in trekking the trail, through where the American aid to China were transported from Myanmar to China's frontlines during the World War Two, according to local media. (Photo by Reuters/Stringer)





A group of participants wear illuminated suits during the Burning Man 2015 “Carnival of Mirrors” arts and music festival in the Black Rock Desert of Nevada, September 5, 2015. Approximately 70,000 people have come to the sold-out festival that Sunday evening. (Photo by Jim Urquhart/Reuters)





Participants line up around an art piece while waiting for breakfast at Barbie Death Camp during the Burning Man 2015 “Carnival of Mirrors” arts and music festival in the Black Rock Desert of Nevada, September 5, 2015. (Photo by Jim Urquhart/Reuters)





People walk pass the art installation Becoming Human during the Burning Man 2015 “Carnival of Mirrors” arts and music festival in the Black Rock Desert of Nevada, September 5, 2015. (Photo by Jim Urquhart/Reuters)





Participants from left, Gabriel Dice, Leila Dahmani and Matthew Peace visit around a piano during the Burning Man 2015 “Carnival of Mirrors” arts and music festival in the Black Rock Desert of Nevada, September 5, 2015. (Photo by Jim Urquhart/Reuters)





Participants stay warm by a fire during the Burning Man 2015 “Carnival of Mirrors” arts and music festival in the Black Rock Desert of Nevada, September 5, 2015. (Photo by Jim Urquhart/Reuters)





Spectators watch the 50-tonne Arcadia spider perform a laser and pyrotechnics show in Bristol, Britain September 4, 2015. Bristol, the European Green Capital 2015, is hosting the world's first recycled biofuel pyrotechnics show. The 50-tonne Arcadia spider is constructed from used repurposed military hardware and fuelled by waste oil from local fish and chip shops. (Photo by Eddie Keogh/Reuters)





A Lord of Lightning performs during the Arcadia laser and pyrotechnics show in Bristol, Britain September 4, 2015. (Photo by Eddie Keogh/Reuters)





Spectators watch the 50-tonne Arcadia spider perform a laser and pyrotechnics show in Bristol, Britain September 4, 2015. (Photo by Eddie Keogh/Reuters)





A Lord of Lightning performs during the Arcadia laser and pyrotechnics show in Bristol, Britain September 4, 2015. (Photo by Eddie Keogh/Reuters)





Danish troops take part in live fire exercise in a tactical environment ahead of the “Silver Arrow” drill in Adazi training field, Latvia, September 5, 2015. (Photo by Ints Kalnins/Reuters)





Danish troops with M113 armored personnel carrier take part in a live fire exercise in a tactical environment ahead of the “Silver Arrow” drill in Adazi training field, Latvia, September 5, 2015. (Photo by Ints Kalnins/Reuters)





Danish soldiers take part in a live fire exercise in a tactical environment ahead of the “Silver Arrow” drill in Adazi training field, Latvia, September 5, 2015. (Photo by Ints Kalnins/Reuters)





Danish troops fire grenade as they take part in live fire exercise in a tactical environment ahead of “Silver Arrow” drill in Adazi training field, Latvia, September 5, 2015. (Photo by Ints Kalnins/Reuters)





An opposition student pours water over a copy of the military-backed draft constitution during a protest against it in Bangkok, Thailand September 5, 2015. The junta-appointed National Reform Council (NRC) will vote on the draft on Sept. 6 and if it passes, it will be put to a referendum in January. It needs the support of just over half the NRC's 247 members. (Photo by Jorge Silva/Reuters)





An opposition student holds a mock ballot with the option “No” seletcted during a protest againts the military-backed draft constitution in Bangkok, Thailand September 5, 2015. (Photo by Jorge Silva/Reuters)





Plainclothes policemen stand next to a statue after students supporting the opposition attached mock ballots with option “No” selected to it during a protest against the military-backed draft constitution in Bangkok, Thailand September 5, 2015. (Photo by Jorge Silva/Reuters)





Members of the Emirati armed forces carry coffins containing the bodies of Emirati soldiers, who were killed in Yemen, upon their arrival at Abu Dhabi international airport in this handout photo provide by United Arab Emirates News Agency WAM on September 5, 2015. At least 50 soldiers from the United Arab Emirates and Bahrain were killed in Yemen on Friday in the deadliest attack on Gulf Arab troops in the Saudi-led military campaign against Houthi forces, Gulf news agencies said. (Photo by Reuters/United Arab Emirates News Agency WAM)





A Shiite fighter known as a Houthi stands guard in front of buildings destroyed by a Saudi-led airstrike in Sanaa, Yemen, Saturday, September 5, 2015. (Photo by Hani Mohammed/AP Photo)





A boy dressed as Lord Krishna takes part in celebrations to mark the Janmashtami festival in Dhaka, Bangladesh September 5, 2015. The festival, which marks the birth anniversary of Lord Krishna, is being celebrated on Saturday. (Photo by Ashikur Rahman/Reuters)





A “Free Syrian Army” fighter washes his head in Old Aleppo, Syria September 5, 2015. (Photo by Abdalrhman Ismail/Reuters)





A police officer (L) holding a baton runs to push back refugees and migrants waiting for a registration procedure at the port of Mytilene on the Greek island of Lesbos, September 5, 2015. Greece is struggling to cope with the hundreds of migrants and refugees from the war in Syria making the short crossing every day from Turkey to Greece's eastern islands, including Kos, Lesbos, Samos and Agathonisi. (Photo by Dimitris Michalakis/Reuters)





Refugees and migrants are packed together while waiting for a registration procedure at the port of Mytilene on the Greek island of Lesbos, September 5, 2015. (Photo by Dimitris Michalakis/Reuters)





A woman is squeezed as refugees and migrants are packed together while waiting for a registration procedure at the port of Mytilene on the Greek island of Lesbos, September 5, 2015. (Photo by Dimitris Michalakis/Reuters)





A man is helped after collapsing from the heat as refugees and migrants are packed together for a registration procedure at the port of Mytilene on the Greek island of Lesbos, September 5, 2015. (Photo by Dimitris Michalakis/Reuters)





Migrants carry an injured migrant during scuffles with police as they tried to embark a passenger ship heading to Athens without a ticket, at the port of Mytilene on the Greek island of Lesbos, September 5, 2015. (Photo by Dimitris Michalakis/Reuters)





Spanish bullfighter Jose Maria Manzanares performs a pass to a bull during the “Corrida Goyesca” bullfight in Ronda, near Malaga, southern Spain September 5, 2015. In the annual “Corrida Goyesca” fight in Ronda's historic bullring the bullfighters wear costumes from the era of 18th century painter Francisco Goya. (Photo by Jon Nazca/Reuters)





BMC Racing's Alessandro De Marchi of Italy celebrates on the podium after winning the 215km (133 miles) 14th stage of the Vuelta Tour of Spain cycling race from Vitoria to Alto Campoo, northern Spain, September 5, 2015. Fabio Aru held off a strong challenge from Joaquim Rodriguez to protect his overall lead in the Vuelta during the 14th stage. (Photo by Joseba Etxaburu/Reuters)





A woman holds a sign that says “He was three; Not in my name” as she attends a demonstration asking for a change in the refugee policy in Europe on the Republique square in Paris, France, September 5, 2015. (Photo by Philippe Wojazer/Reuters)





People hold a banner that says “We love refugees” as they take part in a demonstration asking for a change in the refugee policy in Europe on the Republique square in Paris, France, September 5, 2015. (Photo by Philippe Wojazer/Reuters)





A woman holds a sign that says “Open the borders” during a demonstration asking for a change in the refugee policy in Europe on the Republique square in Paris, France, September 5, 2015. (Photo by Philippe Wojazer/Reuters)





England's Wayne Rooney (R) covers himself during their Euro 2016 qualifying soccer match against San Marino at the Olympic stadium in Serravalle, San Marino, September 5, 2015. (Photo by Alberto Lingria/Reuters)





A supporter of the Spanish soccer team waits for the start of the Euro 2016 qualification soccer match between Spain and Slovakia at Carlos Tartiere stadium in Oviedo, Spain, September 5, 2015. (Photo by Eloy Alonso/Reuters)





People dressed as gorillas perform during the annual mountain gorilla naming ceremony, also known as “Kwita Izina”, in Kinigi town, Rwanda, September 5, 2015. Some 24 baby gorillas were named as the country continues to raise awareness about the importance of preserving the gorillas, already declared an endangered species. (Photo by Edward Echwalu/Reuters)





People wave the Rwandan national flag as they follow proceedings at the annual mountain gorilla naming ceremony, also known as “Kwita Izina”, in Kinigi town, Rwanda, September 5, 2015. (Photo by Edward Echwalu/Reuters)





A gorilla mascot performs during the annual mountain gorilla naming ceremony, also known as “Kwita Izina”, in Kinigi town, Rwanda, September 5, 2015. (Photo by Edward Echwalu/Reuters)





People dressed as gorillas perform during the annual mountain gorilla naming ceremony, also known as “Kwita Izina”, in Kinigi town, Rwanda, September 5, 2015. (Photo by Edward Echwalu/Reuters)





Guests dressed in traditional attire walk around gorilla mascots before the start of the annual mountain gorilla naming ceremony, also known as “Kwita Izina”, in Kinigi town, Rwanda, September 5, 2015. (Photo by Edward Echwalu/Reuters)





Ramona Forchini of Switzerland celebrates as she wins the Women's Under 23 Cross-Country Olympic race on day 4 of the UCI Mountain Bike & Trials World Championships on September 4, 2015 in La Massana, Andorra. (Photo by David Ramos/Getty Images for British Cycling)





A boy walks with toy guns as people ride an APC during a military show at the Finnish Gulf coast in St.Petersburg, Russia, Saturday, September 5, 2015. (Photo by Dmitry Lovetsky/AP Photo)





Raven Desdemona wears her Riddler costume from Batman while riding a long escalator from the MARTA rail station up to the 28th annual Dragon Con science fiction and fantasy convention in Atlanta, Georgia, USA, 04 September 2015. Thousands of attendees crowd downtown Atlanta hotels and streets during the Labor Day weekend, many dressed as their favorite characters in what is know as cosplay. (Photo by Erik S. Lesser/EPA)





Victor Peralta, from Uruguay, and his wife Gabriela Peralta, from Argentina, talk with Matt Gone, from the U.S., at a tattoo festival in Lima, Peru, Saturday, September 5, 2015. The South American couple hold the official Guinness World Record for married couple with the most body modifications. (Photo by Martin Mejia/AP Photo)