Wokou (Chinese: 倭寇; pinyin: Wōkòu; Japanese: Wakō; Korean: 왜구 Waegu), which literally translates to "Japanese pirates" or "dwarf pirates", were pirates who raided the coastlines of China, Japan and Korea. Wokou came from a mixture of ethnicities.
There are two distinct eras of wokou piracy. The early wokou mostly set up camp on Japanese outlying islands, as opposed to the 16th century wokou who were mostly non-Japanese. The early wokou raided the Japanese themselves as well as China and Korea.
The first recorded use of the term wokou (倭寇) is on the Gwanggaeto Stele, a stone monument erected in northern Korea to celebrate the exploits of Gwanggaeto the Great (r. 391-413). The stele states that "wokou" ("Japanese robbers") crossed the sea and were defeated by him in the year 404.
Records report that the main camps of the early wokou were the island of Tsushima, Iki Island, and the Gotō Islands. Jeong Mong-ju was dispatched to Japan to deal with the problem, and during his visit Kyushu governor Imagawa Sadayo suppressed the early wokou, later returning their captured property and people to Korea. In 1405 Ashikaga Yoshimitsu sent twenty captured pirates to China, where they were boiled in a cauldron in Ningbo.
According to Korean records, wako pirates were particularly rampant roughly from 1350. After almost annual invasions of the southern provinces of Jeolla and Gyeongsang, they migrated northwards to the Chungcheong and Gyeonggi areas. The History of Goryeo has a record of sea battles in 1380 whereby one hundred warships were sent to Jinpo to rout Japanese pirates there, releasing 334 captives, Japanese sorties decreasing then after. The wako pirates were effectively expelled through the use of gunpowder technology, which the wako then lacked, after Goryeo founded the Office of Gunpowder Weapons in 1377 (but abolished twelve years later).:pp. 82–86 Korea launched attacks on pirate bases on Tsushima in 1419 with the Gihae Eastern Expedition. General Yi Jongmu's fleet of 227 ships and 17,285 soldiers set off from Geoje Island toward Tsushima on June 19, 1419. The routes of the Korean attack were guided by captured Japanese pirates. After landing, General Yi Jongmu first sent captured Japanese pirates as emissaries to ask for surrender. When he received no reply, he sent out his forces and the soldiers proceeded to raid the pirates and destroy their settlements. The Korean army destroyed 129 boats, 1939 houses and killed or enslaved 135 coastal residents as well as rescuing 131 Chinese and Korean captives of the pirates and 21 slaves on the island. The number of Wokou raids dropped dramatically after the Korean expedition.
Some of the coastal forts built for defense against Wokou can still be found in Zhejiang and Fujian. Among them are the well-restored Pucheng Fortress (in Cangnan County, Zhejiang) and Chongwu Fortress (in Chongwu, Huai'an County, Fujian), as well as the ruins of the Liu'ao Fortress in Liu'ao, Zhangpu County (Fujian).
Because of the extent of corruption in the Ming court, many Chinese officials actually had relations with the pirates and benefited from the piracy, making it difficult for central authorities to control.
Two well known Chinese military figures involved in the combating of Wokou are Qi Jiguang and Yu Dayou. Yu Dayou was a general of the Ming dynasty who was assigned to defend the coast against the Japanese pirates. In 1553, a young man named Qi Jiguang became Assistant Regional Military Commissioner of the Ming dynasty and was assigned to "punish the bandits and guard the people" which meant taking on the Japanese pirates attacking the Ming east coast. At the time he was only twenty-six years old. On the eve of the next year he was promoted to full Commissioner in Zhejiang because of his successes.
Controversy over identity
The identity of the wokou is subject to some debate, with various theories about the ethnic makeup and national origin of the pirates.
Professor Takeo Tanaka of University of Tokyo proposed in 1966 that the early wokou were Koreans living on these outlying islands. In the Annals of the Joseon Dynasty, the compiled section for King Sejong relates that a vassal named Yi Sun-mong (Hangul: 이순몽; hanja: 李順蒙, 1386–1449) told his monarch "I hear that in the late Goryeo kingdom period, Wokou roaming (our country) and the peasants could not withstand them. However only 1 or 2 (out of 10) were caused by (real) Japanese. Some of our peasants imitatively wore Japanese clothing, formed a group and caused trouble... in order to stop all evils, there is nothing more urgent than the Hopae (personal identification system)". However, Yi did not live during the Goryeo dynasty, and was likely relating rumor or legend as opposed to solid documented evidence. Moreover, the thrust of Yi's speech concentrates on how national security was deteriorating and how it required special attention; it is possible he made use of unreliable information to support his point. Yi's assertion is therefore not highly valued as a source for wokou by other researchers. The chronicle Goryeosa records 529 wokou raids during the 1223–1392 period, but mentions the "fake Japanese" only 3 times.
The current prevailing theory is that of Shōsuke Murai, who demonstrated in 1988 that the early wokou came from multiple ethnic groups rather than one singular nation. Murai wrote that the wokou were "marginal men" living in politically unstable areas without national allegiances, akin to the Zomia thesis. Supporters of this theory point out that one of the early wokou leaders, Ajibaldo, was variously claimed by period sources to be Mongolian, Japanese, Korean, and an "islander"; his name is apparently Korean and Mongolian in origin.
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- Prof. Douglas R. Howland. Borders of Chinese Civilization: Geography and History at Empire’s End (Duke University Press Books, 1996), p. 22
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- Wang Xiangrong, "Periodizing the History of Sino-Japanese Relations" Sino-Japanese Studies v. 2 (1980), 31
- Sansom, George (1961). A History of Japan, 1334–1615. Stanford University Press. p. 265. ISBN 0804705259.
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- Kawazoe, Shōji, Taigai kankei no shiteki tenkai (Bunken shuppan, 1996) p. 167 (川添昭二「対外関係の史的展開」) (Japanese)
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- Park, Seong-rae (2005). Science and Technology in Korean History: Excursions, Innovations, and Issues. Jain Pub Co. p. 85.
- 朝鮮王朝実録世宗4卷1年（1419年）6月20日:"我師分道搜捕, 奪賊船大小百二十九艘, 擇可用者二十艘, 餘悉焚之, 又焚賊戶千九百三十九。 前後斬首百十四, 擒生口二十一, 芟除田上禾穀, 獲被虜中國男婦百三十一名" (Chinese)
- Yang Shuiming (杨水明), 六鳌古城：倾听历史的涛声 (The old Liu'ao Fortress: listening to the waves of history) (Chinese)
- Anthony Reid, "Violence at Sea". in Robert J Antony, ed., Elusive Pirates, Pervasive Smugglers. Hong Kong University Press. p. 18
- History of Ming, Volume 322, "Biography Section 210: Japan (3)" (明史 列傳第二百十外國三 日本": Year Jiajing 26 1547) "Generally true Japanese were 3 out of ten, the subornates to the Japanese 7 out of 10 (大抵真倭十之三，從倭者十之七)" (Chinese)
- Chinese Wikisource has original text related to this article: 明史/卷322 (Chinese)
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- 世宗 114卷 28年 (1446 丙寅) 10月 28日 (壬戌) "臣聞前朝之季, 倭寇興行, 民不聊生, 然其間倭人不過一二, 而本國之民, 假著倭服, 成黨作亂.. 救弊之要, 莫切於號牌。" (Chinese)
- P'ar-hyŏn Chang (장팔현), PhD., Chungbuk National University, "Were the Wokou made up mostly of Goryeo and Choson Koreans then?", Chungcheong Daily: "그러나 우리 측 사료인 ‘고려사’에는 단 3건의 가왜(假倭)기록이 있을 뿐이다. 1223년부터 1392년까지 169년간 총 529회의 침입에 겨우 3번의 ‘가왜’ 기록이 있을 뿐인데, 이를 보고 왜구의 주체를 고려인으로 봄은 어불성설이고 침소봉대를 해도 너무 지나치다고 볼 수 있다. ‘조선왕조실록’에도 왜구침구 기사가 무려 312건이 나오는데 이 기사 어디에도 조선인이 왜구라는 말은 없다."
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- "Tribute and Trade", KoreanHistoryProject.org