Special police members crawl through mud during a physical training in Chengdu, the capital of Southwest China's Sichuan province, July 11, 2011. The squad kicked off a week-long training schedule, its hardest of the year, in Longquan Mountai in Chengdu, in an attempt to push the soldiers' mind-sets as well as physical conditions to the limit, thus enhancing their abilities to conduct various missions. [Photo/Xinhua]