A student signs a banner to mark the 81st anniversary of the Sept 18 Incident at school in Rushan, East China's Shandong province, Sept 17, 2012. The school invited veterans and active soldiers for patriotism education activities. Japanese forces attacked Chinese troops in Shenyang on Sept 18, 1931, marking the beginning of the Japanese invasion and occupation of Northeast China that lasted for 14 years. [Photo/Xinhua]