February 15 marks 30 years since the day the last Soviet soldiers were withdrawn from Afghanistan. The Soviet-Afghan War lasted nine years: it was Russia’s longest war in a century that also included a civil war, two world wars, and a number of international conflicts. Why did Soviet leaders decide to invade Afghanistan despite internal opposition? What role did the United States really play in the conflict? What do present-day Russian government officials think about the war? Meduza answers these and other questions below.