From August 1950, the communist 6th Cavalry Division, 7th Infantry Division, and troops from communist Pingliang and Qingyang Military Sub-Districts totaling more than 15,000 begun their operation against the more than a dozen bands of bandits headed by chieftains including Guo Shuanzi (郭栓子), Ma Yanbiao (马彦彪), Ma Guoyuan (马国援) and others in Xiji (西吉), Longde (隆德), Helan Shan and Hexi Corridor regions.
Northeast Corridor | Island Eastern Corridor | Capitol Corridor | Hexi | Wakhan Corridor | Pan-European Corridor X | Shock Corridor | Polish Corridor | Hexi District, Tianjin | Hexi District | East-West Corridor | Central Corridor Rail Line | Blackstone River Valley National Heritage Corridor | Alameda Corridor | West Berlin Air Corridor | U.S. Route 48 (Corridor H) | Trans-Texas Corridor | Standard Corridor | Springwater Corridor | Red Rock Corridor | Quality Bus Corridor | Polish corridor | Persian Corridor | Pan-European corridor X | Pan-European Corridor IV | Northwest Corridor HOV/BRT | Northeast Corridor Line | Mesoamerican Biological Corridor | Hexi Corridor | H. B. Van Duzer Forest State Scenic Corridor |