ARTILLERY FACILITY Chinese Gen. Jing Zhiyuan, commander, 2nd Artillery Corps, greets U.S. Defense Secretary Robert M. Gates at the artillery facility in Qinghe, China, Jan. 12, 2011. Gates wrapped up a four-day trip to China by visiting the People's Liberation Army 2nd Artillery Group and the Great Wall. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 410775-W-NEK86-648.jpg Photo Gallery