This article is about the specific polity Republic of Korea and therefore only includes events related to its territory and not to its possessions or colonies. If you are interested in the possession, this is the link to the article about the nation which includes all possessions as well as all the different incarnations of the nation.
If you are looking for the page with the statistics about this polity you can find it here:All Statistics
Is a country in East Asia that occupies the southern half of the Korean Peninsula. In 1910 whole Korea was annexed by Japan. After Japan's defeat in World War the Korean Pensinsula was divided in a Soviet and an American occupation zone. The U.S. zone gained independency as the Republic of Korea in 1948.
Establishment
August 1948: The Republic of Korea (South Korea) was established.
Chronology
Interactive Chronologies with maps are available in the section Changes Navigation
Was a series of withdrawals from territories occupied by the Allies during World War II in the aftermath of the war.
1.1.Creation of North and South Korea
The two occupation zones of Korea, by the USSR and the USA, became independent countries.
Was a war between North Korea (supported by the USSR and China) and South Korea (supported by the United States) that begun when North Korea invaded South Korea with the goal of reuniting the countries. The war was caused by the partition of Korea by the USSR and USA after taking the territory from Japan during World War II. Japan had annexed Korea, previously an independent country, in 1910.
2.1.North Korean Offensive
Was the military invasion of South Korea by North Korea that started the Korean War.
June 1950: Battle of Uijeongbu (1950).
June 1950: Battle of Gorangpo.
June 1950: Battle of Kaesong-Munsan.
June 1950: Battle of Ongjin.
June 1950: First Battle of Seoul.
June 1950: Battle of Chuncheon.
July 1950: Battle of Osan.
July 1950: Battle of Pyongtaek.
July 1950: Battle of Chonan.
July 1950: Battle of Chochiwon.
July 1950: Battle of Taejon.
July 1950: Battle of Andong.
July 1950: Battle of Yongdong.
July 1950: Hadong Ambush.
July 1950: Battle of Hwanggan.
July 1950: Battle of Sangju (1950).
August 1950: Battle of Andong.
2.1.1.Battle of Pusan Perimeter
Was a large-scale battle between United Nations Command (UN) and North Korean forces during the North Korean invasion of South Korea, at the beginning of the Korean War.
August 1950: First Battle of Naktong Bulge.
August 1950: Battle of Taegu.
August 1950: Battle of Gasan.
August 1950: Battle of Sobuk San.
August 1950: Battle of Nam River.
September 1950: Battle of Ka-san.
September 1950: Battle of Yongsan.
September 1950: Battle of Tabu-dong.
2.2.United Nations and South Korea Counteroffensive
Was a South Korean counteroffensive against the North Korean invasion, during the Korean War.
September 1950: Battle of Inchon.
September 1950: United Nations forces abandoned their vehicles and heavy equipment between Hyopch'on and Koch'ang as they retreated from North Korean forces.
September 1950: The ROK 3rd Division, with heavy US naval gunfire support, captured Yongdok.
September 1950: The Rok 6th Division advanced on Hamch'ang and entered it the night.
September 1950: Koch'ang falls to the Republic of Korea.
September 1950: The ROK 23rd Infantry advanced to Anui.
September 1950: The ROK 8th Division secured Andong.
September 1950: The ROK 19th Infantry entered Yongdong without resistance.
September 1950: By September the 27th the 6th Division of the ROK was advancing across the roughest part of the Sobaek Mountains, past Mun'gyong.
September 1950: ROK forces reached Okch'on.
September 1950: Elements of the North Korean 10th Division, withdrew from the notorious Hill 409 near Hyongp'ung (35.689°N 128.448°E).
September 1950: On the 27th ROK forces entered Ch'unyang.
September 1950: ROK forces reached Tanyang.
September 1950: ROK Marines captured Yosu on the south coast.
September 1950: The ROK 24th Division command post is moved to Taejon.
2.2.1.Pusan Perimeter Offensive
Was a large-scale offensive by United Nations Command (UN) forces against North Korean during the Korean War.
September 1950: Pusan Perimeter Offensive line of the front.
September 1950: Second Battle of Seoul.
2.2.2.UN September 1950 counteroffensive
Was a large-scale offensive by United Nations Command (UN) forces against North Korean during the Korean War.
September 1950: Chinju was seized by the Republic of Korea.
September 1950: ROK forces continued on toward Chongup, which was secured at noon on 29 September.
September 1950: The ROK forces moved north from Chinju to Hamyang and Namwon.
September 1950: The North Koreans reach the Kum River.
2.3.Chinese Offensive in South Korea
Was a military invasion of South Korea by North Korea with the support of China.
December 1950: Joint North-Korean and Chinese forces penetrate into South Korea up to Wonju.
January 1951: By the night of January 1, the UN defenses at the Imjin River and the Hantan River had completely collapsed with North Korean forces advancing 14 km into UN territory.
January 1951: Battle of Uijeongbu (1951).
January 1951: Third Battle of Seoul.
January 1951: Frontline of the Korean War in that date.
January 1951: First and Second Battles of Wonju won by South Korea and its allies.
January 1951: Operation Thunderbolt.
February 1951: Battle of Chipyong-ni.
February 1951: Battle of Hoengsong.
February 1951: Frontline of the Korean War in that date.
2.4.UN Counteroffensive (Korean War)
Was a South Korean counteroffensive against North Korean and Chinese forces that had occupied parts of South Korea.
March 1951: Operation Killer.
2.4.1.Operation Ripper
Was a United Nations and South Korea military operation against North Korean and Chinese invading forces during the Korean War.
March 1951: During the night of 14-15 March 1951, elements of the Republic of Korea 1st Infantry Division and the US 3rd Infantry Division, led by General Matthew Ridgway and General Paik Sun-yup, liberated Seoul from North Korean forces during the Korean War.
March 1951: Chuncheon secured by ROK forces.
2.4.2.Operation Courageous
Was a United Nations and South Korea military operation against North Korean and Chinese invading forces during the Korean War.
March 1951: Frontline of Operation Courageous during the Korean War.
2.4.3.Operation Rugged and Dauntless
Was a United Nations and South Korea military operation against North Korean and Chinese invading forces during the Korean War.
April 1951: Frontline of Operation Rugged and Dauntless during the Korean War.
2.5.Chinese Spring Offensive
Was a Chinese military offensive against South Korea in the area of Seoul during the Korean War.
April 1951: Battle of Kapyong.
April 1951: Battle of the Imjin River.
2.5.1.Battle of Hwacheon
Was a battle between the United Nations forces and the Chinese forces during the Chinese Sping Offensive in the Korean War.
April 1951: Chinese spring offensive into the Republic of Korea (April 1951).
2.5.2.Battle of the Soyang River
Was a battle between the United Nations forces and the Chinese forces during the Chinese Sping Offensive in the Korean War.
May 1951: Battle of the Soyang River line of front change.
2.6.UN May-June 1951 counteroffensive
Was a counteroffensive by the United Nations and South Korea against the joint Chinese-North Korean invasion, during the Korean War.
May 1951: During the Korean War, the I Corps forces, including the Republic of Korea (ROK) 1st Division, made significant advances in 1951. On May 21, the ROK 1st Division successfully entered Munsan-ni, a strategic location in the conflict.
May 1951: Three ROK divisions were reached Line Topeka.
June 1951: By mid-June UN forces had reached Line Kansas approximately 3.2-9.7 km north of the 38th Parallel from which they had withdrawn at the start of the Spring Offensive and in some areas advanced to Line Wyoming further north.
Selected Sources
Central Korea, Communist Spring Offensive, Situation 30 April 1951 and Operations Since 22 April and UN Probing Attacks, 1-10 May. United States Military Academy West Point. Retrieved on March, 26th, 2024 on https://www.westpoint.edu/sites/default/files/inline-images/academics/academic_departments/history/Korean%20War/Korea19.pdf
The UN Offensive 16 September-2 November 1950. U.S. Army Center of Military History. Retrieved on March, 26th, 2024 on https://history.army.mil/brochures/kw-unoff/unoff.htm
U.S. Army Center of Military History. Retrieved on March, 26th, 2024 on https://history.army.mil/books/korea/maps/map18_full.jpg
U.S. Army Center of Military History. Retrieved on March, 26th, 2024 on https://history.army.mil/books/korea/maps/map25_full.jpg
U.S. Army Center of Military History. Retrieved on March, 26th, 2024 on https://history.army.mil/books/korea/maps/map29_full.jpg
U.S. Army Center of Military History. Retrieved on March, 26th, 2024 on https://history.army.mil/books/korea/maps/map35_full.jpg
U.S. Army Center of Military History. Retrieved on March, 26th, 2024 on https://www.history.army.mil/books/korea/maps/map28_full.jpg
Republic of Korea
