HistoryData
Historical ConflictZhoushan Island

Capture of Chusan

The second capture of Chusan demonstrated overwhelming British naval and land superiority over Chinese defenses during the First Opium War.

Duration & Scope

1841 ongoing

< 1 year

Key Facts

Date
1 October 1841
British killed
2
British wounded
28
Guns captured
100 iron guns, 36 brass cannon, 540 gingalls
City population
30,000

Strategic Narrative Overview

On 1 October 1841, British forces launched a seaborne assault on the fortified city of Dinghai, capital of the Chusan islands. The operation was brief and one-sided, with the 55th Foot leading the assault against Chinese defenders commanded by Keo. British naval and land firepower proved decisively superior, overwhelming the city's defenses in short order with minimal British losses.

01 / The Origins

The First Opium War arose from tensions between Britain and Qing China over trade imbalances, British opium exports into China, and Chinese efforts to suppress the trade. Britain sought to force open Chinese markets and protect its commercial interests. Chusan (Zhoushan) islands, strategically positioned off the east Chinese coast, were a key operational objective for British forces seeking leverage over the Qing government during the conflict.

03 / The Outcome

Dinghai fell rapidly to the British, who captured 100 iron guns, 36 brass cannon, and 540 gingalls. British casualties amounted to only 2 killed and 28 wounded. The seizure of Chusan strengthened Britain's strategic position in negotiations with China, contributing to eventual Qing capitulation and the signing of the Treaty of Nanking in 1842, which ceded Hong Kong and opened treaty ports.

Belligerents & Mobilization Analysis

Side A

1 belligerent

United Kingdom
Estimated Casualties30

Side B

1 belligerent

Qing China
Key Commanders

Keo.

Outcome
British victory; Dinghai captured with minimal British losses; 676 Chinese guns seized

Kinetic Engagement Axis

Major engagements timeline (1841–present)Timeline of major military engagements plotted chronologically.1841present1841Second Capture o…Allied

Scroll horizontally to view full axis. Events plotted relatively.

Side A victorySide B victoryInconclusiveDecisive / turning point

Location

Map of Dinghai, ChinaMap of Dinghai, ChinaDinghai, China