We have a bad habit of underestimating our enemies-Korea, Vietnam, e.g. and overestimating our own capabilities. Granted the USSR in the 1980s was in what they called the "Period of Stagnation", with an overage leadership committed to a "sclerotic orthodoxy", but Uncle Sam's military had very serious morale problems, and remember what Norman Schwarzkopf said-"The Army lost its integrity in Vietnam."