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3 mar 1990 año - Fourth tunnel into South Korea discovered

Descripción:

A fourth tunnel was discovered on 3 March 1990, north of Haean town in the former Punchbowl battlefield. The tunnel's dimensions are 7 by 7 feet, and it is 476 ft deep. The method of construction is almost identical in structure to the second and the third tunnels.

Añadido al timeline:

fecha:

3 mar 1990 año
Ahora mismo
~ 35 years ago