Question: When was the last time the Olympics were held in the country divided at the end of WWII?

full_context: Document 1: 2018 Winter Olympics: The 2018 Winter Olympics, officially known as the XXIII Olympic Winter Games (French: Les XXIIIèmes Jeux olympiques d'hiver; Hangul: 제 23 회동계올림픽; RR: Je - isipsamhoe Donggye Ollimpik) and commonly known as PyeongChang 2018 ((phjʌŋ. tɕhaŋ)), is a major international multi-sport event scheduled to take place from 9 to 25 February 2018 in Pyeongchang County, South Korea.
Document 2: South Korea: On June 25, 1950, North Korea invaded South Korea, sparking the Korean War, the Cold War's first major conflict, which continued until 1953. At the time, the Soviet Union had boycotted the United Nations (UN), thus forfeiting their veto rights. This allowed the UN to intervene in a civil war when it became apparent that the superior North Korean forces would unify the entire country. The Soviet Union and China backed North Korea, with the later participation of millions of Chinese troops. After an ebb and flow that saw both sides almost pushed to the brink of extinction, and massive losses among Korean civilians in both the north and the south, the war eventually reached a stalemate. The 1953 armistice, never signed by South Korea, split the peninsula along the demilitarized zone near the original demarcation line. No peace treaty was ever signed, resulting in the two countries remaining technically at war. Over 1.2 million people died during the Korean War.
Document 3: Korean War: Korea was ruled by Japan from 1910 until the closing days of World War II. In August 1945, the Soviet Union declared war on Japan and—by agreement with the United States—occupied Korea north of the 38th parallel. U.S. forces subsequently occupied the south and Japan surrendered. By 1948, two separate governments had been set up. Both governments claimed to be the legitimate government of Korea, and neither side accepted the border as permanent. The conflict escalated into open warfare when North Korean forces—supported by the Soviet Union and China—invaded South Korea on 25 June 1950. On that day, the United Nations Security Council recognized this North Korean act as invasion and called for an immediate ceasefire. On 27 June, the Security Council adopted S/RES/83: Complaint of aggression upon the Republic of Korea and decided the formation and dispatch of the UN Forces in Korea. Twenty-one countries of the United Nations eventually contributed to the defense of South Korea, with the United States providing 88% of the UN's military personnel.
Document 4: Korean War: Korea was ruled by Imperial Japan from 1910 until the closing days of World War II. In August 1945, the Soviet Union declared war on Imperial Japan, as a result of an agreement with the United States, and liberated Korea north of the 38th parallel. U.S. forces subsequently moved into the south. By 1948, as a product of the Cold War between the Soviet Union and the United States, Korea was split into two regions, with separate governments. Both claimed to be the legitimate government of all of Korea, and neither accepted the border as permanent. The conflict escalated into open warfare when North Korean forces -- supported by the Soviet Union and China -- moved into the south on 25 June 1950. On 27 June, the United Nations Security Council authorized the formation and dispatch of UN forces to Korea to repel what was recognized as a North Korean invasion. Twenty - one countries of the United Nations eventually contributed to the UN force, with the United States providing 88% of the UN's military personnel.
Document 5: 2018 Winter Olympics: Pyeongchang was elected as the host city in July 2011, during the 123rd IOC Session in Durban, South Africa. This was the first time that South Korea had hosted the Winter Olympics and the second Olympics held in the country overall, after the 1988 Summer Olympics in Seoul. It was the third time that an East Asian country had hosted the Winter Games, after Sapporo (1972) and Nagano (1998), both in Japan. It was also the first of three consecutive Olympics to be held in East Asia, the other two being the 2020 Summer Olympics in Tokyo and the 2022 Winter Olympics in Beijing.
Document 6: South Korea at the Olympics: Games Host city Dates Nations Participants Events 1988 Summer Olympics Seoul 17 September -- 2 October 160 8,391 263 2018 Winter Olympics Pyeongchang 9 -- 25 February 92 2,952 102
Document 7: 2018 Winter Olympics: The 2018 Winter Olympics, officially known as the XXIII Olympic Winter Games (Korean: 제 23 회동계올림픽, translit. Jeisipsamhoe Donggye Ollimpik) and commonly known as PyeongChang 2018, was a major multi-sport event held between 9 and 25 February 2018 in Pyeongchang County, Gangwon Province, South Korea, with the opening rounds for certain events held on 8 February 2018, the eve of the opening ceremony. Pyeongchang was elected as the host city in July 2011, during the 123rd IOC Session in Durban, South Africa. This marks the first time South Korea has hosted the Winter Olympics, and the second time the Olympic games have been held in the country, after the 1988 Summer Olympics in Seoul. It also marks the third time East Asia has hosted the Winter Games, after Sapporo, Japan (1972), and Nagano, Japan (1998), and the sixth overall Olympic Games held in East Asia. It was the first of three consecutive Olympic Games to be held in East Asia, preceding Tokyo 2020 (Summer) and Beijing 2022 (Winter).
Document 8: North Korea at the Olympics: North Korea (Democratic People's Republic of Korea) first participated at the Olympic Games in 1964, appearing only in the Winter Olympic Games that year. Eight years later in 1972, the nation first participated at the Summer Olympic Games. Since then, the nation has appeared in every Summer Games, except when North Korea joined the Soviet - led boycott of the 1984 Summer Olympics, and when they boycotted the 1988 Games in Seoul, South Korea.
Document 9: Military history of the United States: The Korean War was a conflict between the United States and its United Nations allies and the communist powers under influence of the Soviet Union (also a UN member nation) and the People's Republic of China (which later also gained UN membership). The principal combatants were North and South Korea. Principal allies of South Korea included the United States, Canada, Australia, the United Kingdom, although many other nations sent troops under the aegis of the United Nations. Allies of North Korea included the People's Republic of China, which supplied military forces, and the Soviet Union, which supplied combat advisors and aircraft pilots, as well as arms, for the Chinese and North Korean troops.
Document 10: 2018 Winter Olympics: The 2018 Winter Olympics, officially known as the XXIII Olympic Winter Games (Korean: 제 23 회동계올림픽, translit. Jeisipsamhoe Donggye Ollimpik) and commonly known as PyeongChang 2018, was an international winter multi-sport event that was held between 9 and 25 February 2018 in Pyeongchang County, Gangwon Province, South Korea, with the opening rounds for certain events held on 8 February 2018, the eve of the opening ceremony.
Document 11: 2018 Winter Olympics: The 2018 Winter Olympics, officially known as the XXIII Olympic Winter Games (Korean: 제 23 회동계올림픽, translit. Jeisipsamhoe Donggye Ollimpik), officially stylized and commonly known as PyeongChang 2018, is an international multi-sport event currently being held from 9 to 25 February 2018 in Pyeongchang County, South Korea, with the opening rounds for certain events held on the eve of the opening ceremony -- 8 February 2018. Pyeongchang was elected as the host in July 2011, during the 123rd IOC Session in Durban, South Africa. It marks the first time South Korea has hosted the Winter Olympics, and the second Olympics in the country overall after the 1988 Summer Olympics in the nation's capital, Seoul. It also marks the third time East Asia has hosted the Winter Games, after Sapporo, Japan (1972), and Nagano, Japan (1998), and the sixth overall Olympic Games held in East Asia. It is the first of three consecutive Olympic Games scheduled to be held in East Asia, preceding Tokyo 2020 (Summer) and Beijing 2022 (Winter).
Document 12: 2018 Winter Olympics: The 2018 Winter Olympics, officially known as the XXIII Olympic Winter Games (Korean: 제 23 회동계올림픽, translit. Jeisipsamhoe Donggye Ollimpik) and commonly known as PyeongChang 2018, was an international winter multi-sport event held between 9 and 25 February 2018 in Pyeongchang County, Gangwon Province, South Korea, with the opening rounds for certain events held on 8 February 2018, the eve of the opening ceremony. Pyeongchang was elected as the host city in July 2011, during the 123rd IOC Session in Durban, South Africa. This was the first time that South Korea had hosted the Winter Olympics and the second Olympics held in the country overall, after the 1988 Summer Olympics in Seoul. It was the third time that an East Asian country had hosted the Winter Games, after Sapporo (1972) and Nagano (1998), both in Japan. It was also the first of three consecutive Olympics to be held in East Asia, the other two being the 2020 Summer Olympics in Tokyo and the 2022 Winter Olympics in Beijing.
Document 13: United States Army: During the Cold War, American troops and their allies fought Communist forces in Korea and Vietnam. The Korean War began in 1950, when the Soviets walked out of a U.N. Security meeting, removing their possible veto. Under a United Nations umbrella, hundreds of thousands of U.S. troops fought to prevent the takeover of South Korea by North Korea, and later, to invade the northern nation. After repeated advances and retreats by both sides, and the PRC People's Volunteer Army's entry into the war, the Korean Armistice Agreement returned the peninsula to the status quo in 1953.
Document 14: Korean War: The Korean War (in South Korean Hangul: 한국전쟁; Hanja: 韓國戰爭; RR: Hanguk Jeonjaeng, ``Korean War ''; in North Korean Chosŏn'gŭl: 조국해방전쟁; Hancha: 祖國解放戰爭; MR: Choguk haebang chǒnjaeng,`` Fatherland Liberation War''; 25 June 1950 -- 27 July 1953) was a war between North Korea (with the support of China and the Soviet Union) and South Korea (with the principal support of the United States). The war began on 25 June 1950 when North Korea invaded South Korea following a series of clashes along the border. The United Nations, with the United States as the principal force, came to the aid of South Korea. China came to the aid of North Korea, and the Soviet Union also gave some assistance to the North.
Document 15: Korean War: The Korean War (in South Korean Hangul: 한국전쟁, Hanja: 韓國戰爭, Hanguk Jeonjaeng, "Korean War"; in North Korean Chosungul: 조국해방전쟁, Joguk Haebang Jeonjaeng, "Fatherland Liberation War"; 25 June 1950 – 27 July 1953)[a] was started when North Korea invaded South Korea. The United Nations, with United States as the principal force, came to aid of South Korea. China, along with assistance from Soviet Union, came to aid of North Korea. The war arose from the division of Korea at the end of World War II and from the global tensions of the Cold War that developed immediately afterwards.
ground_truth: 1988
sub_queries: What country was divided at the end of World War II? Answer: Korea
when was the last time the olympics were held in Korea Answer: 1988