On September 10, 1949, the Liberation Army launched the Gansu River West Corridor on September 10, 1949, the Liberation Army launched the Gansu River West Corridor on September 10, 1949, the Liberation Army launched the Gansu River West Corridor on September 10, 1949, the Liberation Army launched the Gansu River West Corridor on September 10, 1949, the Liberation Army launched the Gansu River West Corridor on September 10, 1949, the Liberation Army launched the Gansu River West Corridor on September 10, 1949, the Liberation Army launched the Gansu River West Corridor on September 10, 1949, the Liberation Army launched the Gansu River West Corridor on September 10, 1949, the Liberation Army launched the First Corridor on September 10, 1949, the First Corridor of the Liberation Army, the National Army