Dr. Christopher Brown (R), the Director of the Ashmolean, talks with Colin Harrison, the Ashmolean's Senior Curator of European Art, in front of a painting by Edouard Manet entitled “Portrait of Mademoiselle Claus” from 1868 in the Ashmolean Museum on February 24, 2012 in Oxford, England. The painting has been sold to a foreign buyer for 28.35 million GBP, however the Government has extended a temporary export bar on the artwork until August to give the Ashmolean an opportunity to raise funds to retain the painting in the UK. (Photo by Oli Scarff/Getty Images)

Rebel fighters from the Jaish al- Fatah (or Army of Conquest) brigades manoeuver an alleged explosive- rigged make- shift armoured vehicle during a major assault on Syrian government forces West of Aleppo city on October 28, 2016 Syrian opposition fighters launched a major assault on government forces to break a months- long siege of rebel- held neighbourhoods of the battered city of Aleppo. Rebel groups including the powerful Ahrar al- Sham faction and former Al- Qaeda affiliate Fateh al- Sham Front fired waves of rockets into government- held western Aleppo, killing at least 15 civilians, a monitor said. (Photo by Omar Haj Kadour/AFP Photo)

Turbines of the new Burbo Bank off shore wind farm lay in the wake of a maintenance boat in the mouth of the River Mersey on May 12, 2008 in Liverpool, England. (Photo by Christopher Furlong/Getty Images)

Firefighters and volunteers work to extinguish a wildfire in Krieza, on Evia Island, Greece, on Tuesday, July 30, 2024. A strong wind in the Aegean Sea is increasing wildfire risks, while parts of the mainland will see heat of 43C by the end of the week. (Photo by Nick Paleologos/Bloomberg)

Fire ravages vegetation during the Cerro de los Pinos wildfire on August 04, 2025 in Cáceres, Spain. Firefighters from Cáceres and INFOEX forest firefighters are battling fires, as high temperatures continue to put the Extremadura region at extreme risk of further wildfires. (Photo by Carlos Gil Andreu/Getty Images)

Ukrainian serviceman Valerii looks on at a position in a frontline, amid Russia's attack on Ukraine, in Mykolaiv region, Ukraine on October 26, 2022. (Photo by Valentyn Ogirenko/Reuters)

U.S. Marines kick in a door while securing a building next to the main hospital in central Baghdad April 15, 2003, which will be used as a temporary Iraqi police headquarters. (Photo by Jerry Lampen/Reuters)

A pro-independence protester sits in front of Catalonia's regional parliament as lawmakers vote inside, in Barcelona, January 16, 2014. (Photo by Albert Gea/Reuters)