Photo taken on Jan 10, 2014 shows a document recording the names and information of escaping Chinese laborers in 1943, which reveals that child laborers are also used by Japanese troops, in Changchun, capital of Northeast China's Jilin province. The Japanese documents recently released by Jilin Provincial Archives regarding "forced Chinese labor" show in detail Japanese troops' warfare crimes on forcing Chinese laborers including exploitation, maltreatment and execution. [Photo/Xinhua]