How to the Soviet-Afghan war impact the Soviet Union, United States and Afghanistan?

*WILL MARK AS BRAINLIEST*

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.

Explanation:

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