Afghan school children study at an open-air classroom on the outskirts of Jalalabad, in Nangarhar province, on Febraury 16, 2014. Afghanistan has had only rare moments of peace over the past 30 years, its education system being undermined by the Soviet invasion of 1979, a civil war in the 1990s and five years of Taliban rule. AFP PHOTO/Noorullah Shirzada        (Photo credit should read Noorullah Shirzada/AFP via Getty Images)