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050383 82: Guerrilla soldiers or mujahadeen stand with artillery at a remote base in the Safed Koh Mountains February 10, 1988 in Afghanistan. The end of Soviet military occupation, which began in 1979, has left the Afghan Army more vulnerable to these guerrilla forces, who are fighting the Russian-installed Afghan government. (Photo by Robert Nickelsberg/Getty Images)

050383 82: Guerrilla soldiers or mujahadeen stand with artillery at a remote base in the Safed Koh Mountains February 10, 1988 in Afghanistan. The end of Soviet military occupation, which began in 1979, has left the Afghan Army more vulnerable to these guerrilla forces, who are fighting the Russian-installed Afghan government. (Photo by Robert Nickelsberg/Getty Images)

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050383 66: A guerrilla soldier aims a stinger missle at passing aircraft from a remote rebel base in the Safed Koh Mountains February 10, 1988 in Afghanistan. A Soviet-supported communist coup by the People's Democratic Party of Afghanistan led to the USSR's 1979 invasion of the Islamic nation, resulting in ten years of civil war between the Russian-led government and the US-backed Afghan rebels. (Photo by Robert Nickelsberg/Liaison)

050383 66: A guerrilla soldier aims a stinger missle at passing aircraft from a remote rebel base in the Safed Koh Mountains February 10, 1988 in Afghanistan. A Soviet-supported communist coup by the People's Democratic Party of Afghanistan led to the USSR's 1979 invasion of the Islamic nation, resulting in ten years of civil war between the Russian-led government and the US-backed Afghan rebels. (Photo by Robert Nickelsberg/Liaison)

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050383 21: A guerrilla soldier fires his rifle in defense of a remote rebel base in the Safed Koh mountains February 10, 1988 in Afghanistan. A Soviet-supported communist coup by the People's Democratic Party of Afghanistan led to the USSR's 1979 invasion of the Islamic nation, resulting in ten years of civil war between the Russian-led Government and the US-backed Afghan rebels. (photo by Robert Nickelsberg/Liaison)

050383 21: A guerrilla soldier fires his rifle in defense of a remote rebel base in the Safed Koh mountains February 10, 1988 in Afghanistan. A Soviet-supported communist coup by the People's Democratic Party of Afghanistan led to the USSR's 1979 invasion of the Islamic nation, resulting in ten years of civil war between the Russian-led Government and the US-backed Afghan rebels. (photo by Robert Nickelsberg/Liaison)

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050383 06: Guerrilla soldiers pose with debris from a Russian jet they shot down at a remote base in the Safed Koh Mountains February 10, 1988 in Afghanistan. A Soviet-supported communist coup by the People's Democratic Party of Afghanistan led to the USSR's 1979 invasion of the Islamic nation, resulting in ten years of civil war between the Russian-led government and the US-backed Afghan rebels. (Photo by Robert Nickelsberg/Liaison)

050383 06: Guerrilla soldiers pose with debris from a Russian jet they shot down at a remote base in the Safed Koh Mountains February 10, 1988 in Afghanistan. A Soviet-supported communist coup by the People's Democratic Party of Afghanistan led to the USSR's 1979 invasion of the Islamic nation, resulting in ten years of civil war between the Russian-led government and the US-backed Afghan rebels. (Photo by Robert Nickelsberg/Liaison)

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050383 38: A guerrilla soldier poses with his rifle at a remote base in the Safed Koh Mountains February 10, 1988 in Afghanistan. A Soviet-supported communist coup by the People's Democratic Party of Afghanistan led to the USSR's 1979 invasion of the Islamic nation, resulting in ten years of civil war between the Russian-led government and the US-backed Afghan rebels. (Photo by Robert Nickelsberg/Liaison)

050383 38: A guerrilla soldier poses with his rifle at a remote base in the Safed Koh Mountains February 10, 1988 in Afghanistan. A Soviet-supported communist coup by the People's Democratic Party of Afghanistan led to the USSR's 1979 invasion of the Islamic nation, resulting in ten years of civil war between the Russian-led government and the US-backed Afghan rebels. (Photo by Robert Nickelsberg/Liaison)