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How did Goguryeo use military garrisons to govern its territory?

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Map of the Korean Peninsula highlighted in orange, showing North Korea in the north and South Korea in the south. The peninsula is bordered by China and Russia to the north, the Yellow Sea to the west, the East Sea (Sea of Japan) to the east, and Japan across the sea to the southeast. A small inset globe at the top left shows the peninsula's location in East Asia. — Korea Map of the Korean Peninsula, indicating northern and southern regions.

In the ancient kingdom of Goguryeo, the state was governed through a centralized bureaucracy that utilized military garrisons as a primary administrative tool. These garrisons were strategically erected at key points throughout the kingdom, serving as the physical infrastructure through which officials exercised their authority and maintained control over the territory.1