The International Olympic Committee confirmed that the rogue nation has made plans to take part in the games which are due to be held in February.
The IOC says that the Korean athletes will compete in the Pyeongchang Olympics and both Korean teams will march together in the opening ceremony.
IOC President Thomas Bach said the North Koreans will takae part in five sports disciplines, including a unified women’s hockey team.
The others are figure skating, short track speed skating, Alpine skiing and cross-country skiing.
The North Korean delegation will include 24 coaches and officials at the February 9-25 Winter Games.
Mr Bach offered “sincere thanks to the governments of North and South Korea”.
The agreement became possible after North Korean leader Kim Jong Un said three weeks ago that a team could cross the border to compete.
Mr Bach did not take questions and was flanked by Olympic and government officials from both countries at a brief news conference.
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