Paramilitary policemen raise their fists as they attend an oath-taking rally to ensure the security of the upcoming 2014 Nanjing Youth Olympic Games, in Nanjing…Paramilitary policemen raise their fists as they attend an oath-taking rally to ensure the security of the upcoming 2014 Nanjing Youth Olympic Games, in Nanjing, Jiangsu province July 29, 2014. The eastern Chinese city of Nanjing will host the 2014 Youth Olympic Games between August 16 to August 28. REUTERS/China Daily (CHINA — Tags: MILITARY SPORT OLYMPICS TPX IMAGES OF THE DAY) CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA