North Korea's manpower is half the size of United States man power. United States has a population that has 120 million people fit for service. That means almost 40% of The United States population (316 million) could serve in the army. 1.4 million people are currently active personal and additional 850,000 are in the reserve.
However if both sides were to account for their reserve personnel, North Korea would have a manpower that is 2.5 bigger than the US.
But manpower is just the tip of both count
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