Setting Up Crises in Afghanistan and Ukraine• https://www.fff.org, by Jacob G. Hornberger
Back then, the goal of U.S. national-security state officials was to goad the Soviet Union into invading Afghanistan. U.S. National Security Advisor Zbigniew Brzezinski put it succinctly when he told President Carter, "We now have the opportunity of giving to the USSR its Vietnam war."
What he meant by that was the opportunity of getting Soviet soldiers killed, maimed, and injured for no good reason, just as the Pentagon and the CIA did to tens of thousands of U.S. soldiers in Vietnam. Additionally, the Soviet Union would have to waste large sums of taxpayer money, just as the U.S. government also did in Vietnam.
To goad the Soviets into invading Afghanistan, U.S. officials began supporting the anti-Soviet resistance that was committed to removing a pro-Soviet regime from power. U.S. officials figured that faced with the possibility that Afghanistan might end up with a pro-U.S. regime, the Soviets would have no choice but to invade.
The scheme worked brilliantly. The Soviets invaded on December 24, 1979, and for the next decade were bogged down in a guerrilla war, much like the United States was when it invaded Vietnam and, for that matter, when it invaded Afghanistan in 2001. In the process, many Soviet soldiers were killed, maimed, and injured, just as U.S. officials hoped they would be. Moreover, the war helped to bankrupt the Soviet Union, which ultimately led to its dismantling.
Needless to say, U.S. national-security state officials were ecstatic over what they had accomplished. As Brzezinski gloated, "We didn't push the Russians to intervene, but we knowingly increased the probability that they would."
Of course, the U.S. government played the innocent and portrayed the Soviet Union as a horrible aggressor. The following year, the U.S. government boycotted the Summer Olympics in Russia to protest Soviet aggression in Afghanistan.