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After the war, North Korea became increasingly isolated from the rest of the world. The government controlled media, travel, and political activity. Over time, the country developed one of the most closed political systems on Earth. After Kim Il Sung's death, leadership passed to his son Kim Jong …

After the war, North Korea became increasingly isolated from the rest of the world. The government controlled media, travel, and political activity. Over time, the country developed one of the most closed political systems on Earth. After Kim Il Sung's death, leadership passed to his son Kim Jong Il. This marked the continuation of a political system where power remained within the same family. During his rule, the country focused heavily on military strength.