Around the first Opium War, the Qing government strengthened its military construction in strategic locations. Mouth of the Wusong is a strategic location for Jiangsu Province. The Qing government had added a number of cannons here. ZhenYuan General Bronze Cannon was manufactured and supervied by the Provincial Military Leader in Jiangnan Province Chen Huacheng and others, and was installed in Wusong Fort. In November 1984, the cannon was discovered by Shanghai Immigration Inspection near the site of Wusong Fort. It was an important historical witness to the Battle of Wusong during the Opium War and an important physical evidence for studying China's military facilities during the Opium War.
