In late December 1979, the world held its breath as thousands of Soviet troops were sent into Afghanistan. Moscow said the troops would be there six months, to help bring peace to the country. In fact, the Soviet army stayed almost ten years, and Afghanistan came to be seen as the Soviet Union's Vietnam. Louise Hidalgo has been talking to journalist Andrei Ostalski and former soldier Vyacheslav Ismailov about that time.

Picture: Soviet tanks in front of the Darulaman Palace in Kabul (Credit: Henri Bureau/Corbis/VCG via Getty Images)