# List of wars involving Korea until 1948

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This is a list of wars involving Korea until 1948, when the Korean peninsula was de facto divided into South Korea (Republic of Korea, ROK) and North Korea (Democratic People's Republic of Korea, DPRK).
* For wars involving South Korea since 1948, see List of wars involving South Korea
* For wars involving North Korea since 1948, see List of wars involving North Korea

## Gojoseon: ? - 108BC

| Conflict | Gojoseon | Opponents | Results | Monarch of Gojoseon |
| Gojoseon-Yan War (c.300 BC) | Gojoseon | Yan | Defeat Gojoseon loses its core territory in Liaodong and is forced to retreat to Pyongyang. | Unknown |
| Wiman's political change (c.194 BC) | Gojoseon | Wiman | Defeat Jun defeats and Wiman becomes the monarch of Gojoseon. | Jun |
| Gojoseon-Han War (109-108 BC) | Gojoseon | Han dynasty | Defeat Gojoseon is annexed by the Han dynasty, which installs the Four Commanderies of Han in its former lands. | King Ugeo |

## Three Kingdoms of Korea
### Goguryeo: 37 BC – 668 AD

| Conflict | Goguryeo and its allies | Opponents | Results | Monarch of Goguryeo | Notable battles |
| Goguryeo–Wei War (244-245) | Goguryeo | Cao Wei | Defeat Goguryeo temporarily loses its capital and is nearly destroyed. | King Dongcheon | |
| Goguryeo–Wa War (391-404) | Goguryeo Silla | Baekje Wa Gaya | Victory The power of Geumgwan Gaya is broken and Wa is expelled from Korean affairs. Silla becomes a protectorate of Goguryeo. | Gwanggaeto the Great | |
| Goguryeo–Sui War (598, 612–614) | Goguryeo | Sui dynasty | Victory One of the major causes of the fall of the Sui Dynasty | King Yeongyang | Battle of Salsu (612) |
| Goguryeo–Tang War (645–668 CE) | Goguryeo Baekje Yamato Mohe | Tang dynasty Silla | Defeat Fall of Goguryeo Annexation of Goguryeo by Tang End of the Three Kingdoms of Korea Establishment of Andong Protectorate Goguryeo and Baekje swear fealty to Silla, thereby forming Unified Silla Beginning of territorial disputes between Silla and Tang | King Bojang | Battle of Sasu (662) Battle of Baekgang (663) Battle of Hwangsanbeol (660) |

### Baekje: 18 BC – 660 AD

| Conflict | Baekje and its allies | Opponents | Results | Monarch of Baekje |
| Baekje–Tang War (660-663) | Tang dynasty Silla | Baekje Yamato | Defeat Fall of Baekje Annexation of Baekje by Tang Establishment of Ungjin Commandery Beginning of territorial disputes between Silla and Tang | King Uija |

### Silla: 57 BC – 935 AD

| Conflict | Silla and its allies | Opponents | Results | Monarch of Silla |
| Silla–Gaya War (88–562) | Silla | Gaya Baekje | Victory Gaya was absorbed into Silla and Baekje. | Various |
| Silla–Tang War (668–676) | Silla Goguryeo (vassal of Silla) Baekje (vassal of Silla) | Tang dynasty | Victory Silla recaptured the territory south of Taedong River, while Tang held control over former Gorguryeo territory north of Taedong River. | King Munmu |

## Goryeo: 918–1392

| Conflict | Goryeo and its allies | Opponents | Results | Monarch of Goryeo | Notable battles |
| Goryeo–Khitan War (993, 1010, 1018–1019) | Goryeo | Liao dynasty | Victory The Khitan Liao dynasty cedes territory around the Yalu River basin to Goryeo Goryeo pays tribute to the Liao dynasty to establish diplomatic relations Peace ensues between Goryeo and Liao, and Liao never attacks Goryeo again | King Hyeonjong | |
| Korean–Jurchen border conflicts (10th century – 14th century) | Goryeo | Jin dynasty Jurchens | Stalemate | Various | |
| Mongol invasions of Korea (1231, 1232, 1235–1239, 1251, 1254, 1255, 1257) | Goryeo | Mongol Empire | Defeat Goryeo capitulates in 1259 and becomes a vassal between 1270 and 1356. | King Gojong | Siege of Kuju – 1231 – 1232 |
| Mongol invasions of Japan (1274, 1281) | Mongol Empire Yuan dynasty Goryeo (vassal of Mongol Empire) | Imperial Court Kamakura shogunate Hōjō clan Sō clan Shōni clan Sashi clan Taira clan Kikuchi clan Ōtomo clan Shimazu clan Matsura clan | Defeat | King Wonjong King Chungnyeol | |
| Red Turban invasions of Korea (1359, 1361) | Goryeo | Red Turbans | Victory Although Goryeo had repulsed the Red Turbans, both the population and the economy had been severely damaged. | King Gongmin | |

## Joseon: 1392–1897

| Conflict | Joseon dynasty and its allies | Opponents | Results | Monarch of Joseon | Notable battles |
| Second Tsushima Expedition (1396) | Joseon Dynasty | Tsushima Province | Victory Resulted in yearly tributes by Tsushima. | King Taejong | |
| Third Tsushima Expedition (1419) | Joseon Dynasty | Tsushima Province | Victory Sadamori sends a letter of surrender to Joseon court Wokuo pirates cease their activities in Joseon | King Sejong the Great | |
| Joseon Northern Expedition (1443) | Joseon Dynasty | Jianzhou Jurchens | Victory Led to establishment of present-day northern borders. | King Sejong the Great | |
| Sampo Invasion (1510) | Joseon Dynasty | Tsushima Province Japanese pirates | Victory Joseon broke all diplomatic relations with Japan after the incident. | King Jungjong | |
| Japanese invasions of Korea, or Imjin War (1592–1598) | Joseon Dynasty Righteous Army Ming dynasty | Azuchi-Momoyama Japan | Victory October 1598: Japanese withdrawal from Korea Joseon and Ming victory | King Seonjo | Siege of Pyongyang (1592) Battle of Pyongyang (1592) Battle of Yonan – 1592 Battle of Bukgwan – 1592 Siege of Pyongyang (1593) |
| Ming-Manchu War (1618–1683) | Ming dynasty Joseon Dynasty Kumul Khanate Turfan Khanate | Manchus | Defeat Joseon helped the Ming dynasty in the Battle of Sarhu. | Gwanghaegun | |
| First Manchu invasion of Korea (1627) | Joseon Dynasty | Later Jin Dynasty | Defeat Was spurred by actions of Mao Wenlong, a Ming commander who operated off islands of Korea. | King Injo | |
| Second Manchu invasion of Korea (1636–1637) | Joseon Dynasty | Qing Dynasty | Defeat Brought forth the idea of Punitive North Expedition in Joseon. | King Injo | |
| Sino-Russian border conflicts (1652–1689; Korean involvement since 1654) | China Joseon Dynasty | Russia Cossacks | Victory Part of Russia's expansion into Siberia. | King Hyojong | |
| Yi In-jwa's Rebellion, or Musin Rebellion (1728) | Joseon Army | Yi In-Jwa's rebel army | Government victory Rebellion suppressed | King Yeongjo | |
| Hong Gyeong-rae's Rebellion (1812) | Joseon Army | Hong Gyeong-rae's rebel army | Government victory Rebellion suppressed | King Sunjo | |
| French expedition to Korea (1866) | Joseon Dynasty | France | Victory Spurred by Joseon's execution of French Catholic priests on the same year. | Heungseon Daewongun | |
| United States expedition to Korea (1871) | Joseon Dynasty | United States | Victory Spurred by Joseon's unknown treatment of the American merchant ship General Sherman. | Heungseon Daewongun | |
| Ganghwa Island incident (1875) | Joseon Dynasty | Japan | Defeat Joseon was forced to sign Treaty of Ganghwa in 1876. | King Gojong | |
| Imo Incident (1882) | Joseon Dynasty | Korean military dissidents, mostly from the Central Defense Command | Government victory Spurred by Central Defense Command receiving significantly worse treatment compared to the newly established "Byolkigun". | King Gojong | |
| Gapsin Coup (1884) | Joseon Dynasty Supported by Qing China | Reformist Faction Supported by Japan | Government victory Qing Chinese military intervention Flight of the Progressives to Japan | King Gojong | |
| Donghak Peasant Revolution (1894–1895) | Joseon Dynasty Supported by: Qing China (May–July 1894) Japan (July 1894 – 1895) Enlightenment Party (July 1894 – 1895) | Donghak Peasant's Army Co-belligerent: Qing China (July 1894 – April 1895) | Rebellion suppressed; pro-Japanese takeover Initial Qing Chinese intervention supporting king Gojong July 1894: Japanese intervention overthrew the pro-Chinese Korean regime and installed a pro-Japanese Korean regime; Gabo Reform began July 1894 – April 1895: Japan won the First Sino-Japanese War and expelled Qing China from Korea late 1894–1895: Japanese–Korean forces suppressed last Donghak rebels | King Gojong Heungseon Daewongun (pro-Japanese puppet, July–September 1894) | Japanese occupation of Gyeongbokgung Battle of Ugeumchi Retreat from Gongju |

## Korean Empire: 1897–1910

| Conflict | Korean Empire and its allies | Opponents | Results | Emperor of Korea |
| Korean Invasion of Manchuria (1902) | Korea | China | Victory Korean settlers and soldiers moved into Southern Manchuria as the Qing Dynasty weakened | Emperor Gwangmu |
| Eulsa Righteous War (1905) | Korea Righteous Army | Japan | Defeat Reaction to Eulsa Protective Treaty, which made the Korean Empire a Protectorate of Japan. | Emperor Gwangmu |
| Jeungmi Righteous War (1907) | Korea Righteous Army | Japan | Defeat Reaction to the forced dissolution of the Korean Imperial Army. | Emperor Yunghui |
| Great Korean Militia Roundup Campaign (1909) | Korea Righteous Army | Japan | Defeat Most battles were around the Southern Korea region of Jeolla. | Emperor Yunghui |

## Occupied Korea: 1910–1945

| Conflict | Provisional Government of Korea and its allies | Opponents | Results | Leader of Provisional Government |
| Battle of Fengwudong (1920) | Provisional Korea Korean Independence Army | Japan Imperial Japanese Army | Victory One of earlier Korean independence movements. | President Syngman Rhee |
| Battle of Chongsanli (1920) | Provisional Korea Korean Independence Army | Japan Imperial Japanese Army | Victory Referred in Korea as "Great victory of Chongsanli". | President Syngman Rhee |
| Free City Incident (1921) | Provisional Korea Korea Independence Corps | Far Eastern Republic | Defeat Most of initial Korean militia was destroyed during the massacre. | President Syngman Rhee |
| South-East Asian theatre of World War II (1942–1945) | United Kingdom  India Malaya  Hong Kong  Burma  Ceylon  China Korean Liberation Army  United States | Japan State of Burma Azad Hind  Thailand | Victory The KLA fought in the Burma Campaign. | Premier Kim Gu |