North Korea's military, the fourth-largest in the world, remains shrouded in mystery. Both men and women are required to serve in the military in North Korea. Kim Jong Un, the supreme leader of North Korea, has no formal military training. Sign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. AdvertisementLittle is known about life inside the "hermit kingdom" of North Korea.

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Persons: Kim Jong Un, — Organizations: Service, Business Locations: North Korea, China, India, United States