Background: Afghanistan was invaded and occupied by the Soviet Union in 1979. The USSR was forced to withdraw 10 years later by anti-communist mujahidin forces supplied and trained by the US, Saudi Arabia, Pakistan, and others. Fighting subsequently continued among the various mujahidin factions, but the fundamentalist Islamic Taliban movement has been able to seize most of the country. In addition to the continuing civil strife, the country suffers from enormous poverty, a crumbling infrastructure, and widespread live mines.