He served as Military Adviser to the United Nations Special
Mission in Afghanistan (UNSMA) in 1997
"As part of his duties, LTC Lo will keep track of the military
situation in Afghanistan, talk to the representatives from the
various warring parties, facilitate the parties' discussion of
options for settlement and demilitarisation, and make
recommendations to UNSMA on how to improve the situation in
Afghanistan."
http://www.mindef.gov.sg/imindef/resources/speeches/1997/20may97_speech.html
A rumour I've heard while in my NS days is that the Taliban placed
a bounty on his head. 
"Riotous looting and wreckage of UN and public property by heavy
aerial and artillery shelling, however, continued unabated in the
ensuing week, while inter-ethnic conflicts became increasingly
brutal and cruel. Throughout, we continued to confer and negotiate
with the local authorities, but to no avail. Arrangements to leave
Mazar by ICRC flight in compliance with urgent instructions from
UNSMA were unsuccessful. Finally, a death threat was explicitly
issued against us by one of the factions."
Maybe that's where this rumour began. Heh
http://www.mindef.gov.sg/safti/pointer/back/suppleme/1999/Jul/3.htm
