China's Ministry of National Defense unveiled its new spokesman, Senior Colonel Geng Yansheng, to domestic and foreign media on Friday during a press tour to an engineering regiment of the People's Liberation Army (PLA). Mr. Geng, 40, becomes the ministry's third spokesman ahead of the PLA's founding anniversary on Aug. 1. His two predecessors Hu Changming and Huang Xueping who have been transferred to other posts within the ministry. The ministry introduced the spokesperson system in May 2008 after the 8.0-magnitude Wenchuan earthquake. 