The remote vastness of Mongolia has remained somewhat of a mystery to most Westerners - no less so in the 20th century. Homeland of the legendary conqueror Chingiz Khan, in modern times Mongolia itself has been the object of imperial rivalry. For most of the 20th century it was under Soviet domination. Mikhail Gorbachev began the withdrawal of Soviet troops from Mongolia in 1989, a process completed in 1992. By 1996 a coalition of opposition parties...