Nearly twenty-five years ago, the Soviet Union pulled its last troops out of Afghanistan, ending more than nine years of direct involvement and occupation. The USSR entered neighboring Afghanistan in 1979, attempting to shore up the newly-established pro-Soviet regime in Kabul. In short order, nearly 100,000 Soviet soldiers took control of major cities and highways. Rebellion was swift and broad, and the Soviets dealt harshly with the Mujahideen rebels and those who supported them, leveling entire villages to deny safe havens to their enemy. Foreign support propped up the diverse group of rebels, pouring in from Iran, Pakistan, China, and the United States. In the brutal nine-year conflict, an estimated one million civilians were killed, as well as 90,000 Mujahideen fighters, 18,000 Afghan troops, and 14,500 Soviet soldiers. Civil war raged after the withdrawal, setting the stage for the Taliban's takeover of the country in 1996. As NATO troops move toward their final withdrawal this year, Afghans worry about what will come next, and Russian involvement in neighboring Ukraine's rebellion has the world's attention, it is worth looking back at the Soviet-Afghan conflict that ended a quarter-century ago. Today's entry is part of the ongoing series here on Afghanistan.