09-151.pdf

Wung-pyung, who had defected to South Korea in a MiG-19 in
February 1983, a fourth tunnel was discovered by the South Korean
army 26 kilometres northeast of Yanggu near the east coast on March
3, 1990. Reportedly, drilling had begun in May 1989 after noises had
been heard. The tunnel was 2,052 metres long, 1,502 of which were
in the south, 1,7 metres high and wide and located 145 metres below
the surface. An estimated 30,000 men could pass through per hour
and field artillery could be moved. As in 1975, the fact that drainage
water flowed from the south to the north and that dynamite was
loaded from the north to the south was claimed as evidence by South
Korea that North Korea had built the tunnel. However, North Korea
again asserted that South Korea had built the tunnel to invade the
North.
The UNC/MAC strongly protested the tunnel at the 455th MAC
meeting requested by the KPA/CPV held on March 14, and showed
videos, photos and other evidence. The North claimed that the tunnel
was a false propaganda trick for the South to be used for political
purposes. Both sides rejected each other’s proposals for a joint
investigation. In 1994, South Korean military authorities estimated
that there were probably more than 20 tunnels. Mueller-Lhotska
(1997) records that there were 17 presumed tunnels. 256
In 1978, two former heads of the Swedish NNSC delegation
made evaluations of the Commission. Major General Magnus Bruzelius,
Head in 1972-73, expressed the opinion that the NNSC during the
256_ Hahm, op. cit., pp. 147-8; Kim, op. cit., 2006, p. 238; Kukpang chôngbo ponbu,
ibid., 1993, p. 232; Lee, op. cit., 2004, pp. 67-8; Mueller-Lhotska and Millett, op.
cit., p. 54; Mun, ibid., pp. 153, 158; Park, “Armistice Agreement and Peace on
Korean Peninsula,” 1998, p. 85.
320 Peace-keeping in the Korean Peninsula