Acehnesse students parade in their traditional costumes during the celebration of Islamic New Year in Banda Aceh city, capital of Aceh province in Sumatra Island on November 15, 2012. Indonesia, the world's most populous Muslim nation celebrates Islamic New Year, and Aceh is the only province ruled under Islamic law. AFP PHOTO / CHAIDEER MAHYUDDIN        (Photo credit should read CHAIDEER MAHYUDDIN/AFP/Getty Images)