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The Second Incursion Tunnel (제2땅굴)
Place Category: Attraction and Historic Sites
The Second Incursion Tunnel was discovered on March 24, after some North Korean defectors alerted the South Korean government that the North Korean Leader had ordered its troops to dig tunnels in order to invade the South.
The tunnel is 3.5km long and sits as deep as 160 meters below the surface on some sections. The tunnel would allow for thirty thousand armed forces as well as tanks to go through per hour.