Articles 52 and 53 supplied the legal framework for British warships to visit Chinese ports, obtain supplies, make repairs, and pursue pirates while formally working with Chinese officials. That cooperation varied sharply because local warlords could profit from piracy even when poorer raiders carried the immediate risk. The treaty also protected commerce, including the opium traffic that had helped produce the unequal treaty system in the first place. Counter-piracy doubled as naval presence and deterrence because defeating non-state actors demonstrated capability without starting a war with another major power. The same mission gave Britain a defensible reason to retain a substantial Far Eastern squadron.
Chapter · 10:24-18:04
The treaty basis for Royal Navy piracy patrols
The Treaty of Tientsin gave British warships access to Chinese ports while framing piracy suppression as cooperation with Chinese authorities.