Two children whose school was bombed in Aleppo pose in a mock-up meant to symbolise a destroyed classroom set up by charity Save the Children outside the Houses of Parliament in London on February 3, 2016 on the eve of a donor conference aiming to raise money for the millions of Syrians hit by the country's civil war and a refugee crisis. / AFP / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
