Compare the American defeat in Vietnam with the Soviet defeat in Afghanistan

Question

How to compare the American defeat in Vietnam with the Soviet defeat in Afghanistan, and what ways did each conflict reflect the limits of cold war bipolarism?

Answer 1

Some historians say the bloody, draining Afghan war was the last straw for the Red Army and the USSR economy and brought about the dissolution of nation. That war was similar to VietNam for the US, but of course the US loss didn't cause its dissolution, but did cause the Vietnam Syndrome some believe, creating a timid US foreign policy. !