Webster's dictionary defines quagmire as "a difficult, precarious, or entrapping position"
the Vietnam quagmire was that the American troops could not just leave Vietnam because then North Vietnam (communist one) would take over and then the Domino Effect would make neighboring countries communist as well.
Just like in Vietnam, The United States can't just withdraw troops from Afghanistan because then the Taliban and Al-Qaeda would take over all of Afghanistan
the Vietnam quagmire was that the American troops could not just leave Vietnam because then North Vietnam (communist one) would take over and then the Domino Effect would make neighboring countries communist as well.
Just like in Vietnam, The United States can't just withdraw troops from Afghanistan because then the Taliban and Al-Qaeda would take over all of Afghanistan