What historical events took place at the Dagukou Fort?

The Dagukou Fort, located at the mouth of the Hai River in Tianjin, served as a critical defensive site during the 19th-century conflicts between the Qing dynasty and foreign powers.12

Historical events at the fort include:

• 1859 Conflict: In June 1859, British and French diplomats attempted to pass the fort while en route to Beijing to ratify the Treaties of Tianjin. When the Chinese refused them passage and proposed an alternative route, the British-led forces attempted to force their way past the fort. The Qing army successfully repelled the attack, inflicting heavy casualties on the foreign forces.1
• 1860 Destruction: Following the failure of the 1859 attempt, the allies resumed hostilities. In August 1860, a significantly larger force of British and French troops and warships returned, destroyed the Dagu batteries, and proceeded upriver toward Tianjin and Beijing.1
• 1900 Resistance: The fort was also the site of defensive actions by the Qing army against foreign forces during the events of 1900.2

Today, the ruins of the fort are preserved as a tourist site.2