China's forgotten army

During the Japanese occupation of Manchuria and also during World War II, a small, Communist-led guerrilla force was at the forefront of resistance in Northeast China. Now, that contribution is set to win the respect it deserves, as He Na, Liu Mingtai and Han Junhong report from Changchun.

Cao Baoming is desperate to record as many stories as possible about events in the Changbai Mountains more than 70 years ago, when the 1,300-kilometer-long range was the main theater of resistance to the Japanese occupation of China.

No one knows exactly how many Chinese soldiers died in the fierce fighting that encompassed the mountains that separate China, Russia and the Democratic People's Republic of Korea, but Cao is determined to discover as much as he can.