Sun Yubao, 91, a veteran of the anti-Japanese war, observe a moment of silence as students from local primary school look on during a mourning ceremony held in War Martyrs' Cemetery in Nangong City of north China's Hebei Province, Aug. 15, 2017. China is commemorating the 72nd anniversary of Japan's unconditional surrender in World War II Tuesday. (Xinhua/Mou Yu)
