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Several hundred armed North Korean troops enter the DMZ at the Joint Security Area in violation of the Korean armistice agreement
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North Korea sinks the South Korean ship DANGO, north of the northern line limit (North Korea - South Korea sea border), killing 39 sailors.
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An attempt of trim a tree in the DMZ ends with 2 U.S. soldiers killed and injuries another 4 U.S. soldiers and 5 South Korean soldiers.
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31 North Korean commando's cross the DMZ on a mission to kill the South Korean President Park Chung-hee by entering the Blue House (official residence of the President of South Korea). 26 South Korean are killed and 66 wounded. 3 American soldiers are killed and 3 wounded.
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The United States Naval Ship the USS Pueblo is boarded and captured by North Korean forces in the Sea of Japan. 1 sailor is killed and 83 are captured. The sailors are eventually released on December 23, 1968 but the ship remains in North Korean possession.
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120-130 North Korean commandos land in South Korea to engage in guerrilla warfare against the South Korean government. 20 South Koreans are killed
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A U.S. reconnaissance plane is shot down 90 miles east of the North Korea coast, killing 31.
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South Korean Airlines YS-11 carrying 46 passengers is hijacked by North Korean agent Cho Ch'ang-hui.
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North Koreans engage outpost Ouillette in DMZ. One North Korean is wounded.
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A North Korean sniper fires along the DMZ killing a South Korean
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North Korean forces fire on a South Korean fishing boat killing three
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Seven North Korean soldiers cross in the DMZ but withdraw after warning shots are fired.
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A series of clashed between North and South Korean vessels take place in the Yellow Sea near the Northern Line Limit.
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Six South Korean sailors are killed and 1 South Korean vessel is sunk.
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Two North Korean soldiers enter the DMZ and cross into South Korea. They return after South Korean soldiers fire warning shots.
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the South Korean navy ship, The ROKS Cheonan is sunk by a North Korean torpedo killing 46 sailors.
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North Korea fired artillery shells at South Korea's Greater Yeonpyeong island. 70 South Korea houses are destroyed, 4 people were killed and 6 were injured
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Two South Korean soldiers were wounded after stepping on landmines that had allegedly been laid on the southern side of the DMZ by North Korean forces next to a South Korean guard post.