Japanese gunboat Un'yō

From SpottingWorld, the Hub for the SpottingWorld network...
Japanese gunboat Un'yō
Career Japanese Navy Ensign
Name: Un'yō
Builder: A. Hall & Co., Aberdeen
Completed: July 1870
General characteristics
Displacement: 270 long tons (274 t)
Length: 38.4 m (126 ft)
Armament: • 1 × 16 cm (6.3 in) gun
• 1 × 14 cm (5.5 in) gun

Un'yō (雲揚?) was a Japanese gunboat of the nineteenth century which was built by A. Hall & Co., Aberdeen, United Kingdom, and completed in July 1870.

She was famously involved in an incident with Korea when she was sounding the waters off the coast of Ganghwa Island. Korean coastal protection forces fired at the ship, to which the captain of the Un'yō, Inoue Yoshika, responded by firing cannons and sending a landing force. The force destroyed Korean positions before returning to their ship.

The incident led to a diplomatic row between Korea and Japan, with Japan asking for apologies. As these were not forthcoming, on February 1876 Japan sent a force of warships from the nascent Imperial Japanese Navy in a show of force. The result was the Treaty of Ganghwa, which opened the Korean Peninsula to Japanese and foreign trade.

The landing of the forces of the Un'yō at Ganghwa Island.

The incident created by the Un'yō was apparently an attempt at provoking a Korean reaction, so that Japan could forcibly demand concessions, in parallel to Western colonial policy.[1]


  1. Nahm, Andrew C. (1993). Introduction to Korean History and Culture, page 146-7. Seoul: Hollym Corporation. ISBN 0-930878-08-6

External links

ja:雲揚 (砲艦)