epa03875661 (FILE) A file picture dated 31 August 2103 shows UN weapons inspectors arriving at the headquarters of the Organisation for the Prohibition of Chemical Weapons (OPCW) in The Hague, The Netherlands. The OPCW has received a declaration from Syria on the country’s chemical weapons arsenal, a spokesman said on 20 September 2013. EPA/Guus Schoonewille *** Local Caption *** 50975840