BEIJING, CHINA – OCTOBER 28: Chinese President Xi Jinping (R) with Afghan President Ashraf Ghani Ahmadzai (L) attend the signing ceremony at the Great Hall of the People on October 28, 2014 in Beijing, China. At the invitation of President Xi Jinping, President Ashraf Ghani Ahmadzai of the Islamic Republic of Afghanistan will pay a state visit to China from October 28 to 31. (Photo by Lintao Zhang/Getty Images)