Who was Boris Yeltsin? Why was his behavior a problem?

Boris Yeltsin (1931-2007) served as the president of Russia from 1991 until 1999. Though a Communist Party member for much of his life, he eventually came to believe in both democratic and free market reforms, and played an instrumental role in the collapse of the Soviet Union. Yeltsin won two presidential elections, the first of which occurred while Russia was still a Soviet republic. But despite successfully ushering in a freer and more open society, his tenure was marred by economic hardship, increased corruption and crime, a violent war in the breakaway republic of Chechnya and Russia’s diminished influence on world events.

The correct answer is the hindu kush mountains.