Over 1,000 police officers vow to safeguard YOG

The oath-taking ceremony of Nanjing 2014 Summer Youth Olympic Games (YOG) is held at YOG Village in Nanjing city of east China’s Jiangsu province on July 29, 2014. Over 1,000 police officers take part in the ceremony, vowing to safeguard the international sports event. The YOG 2014 will take place between August 16 and 28 in Nanjing.