I...was a little puzzled by your suggestion that we should return to a diplomacy like Bismarck's. Having once planned to write a book on Bismarck's d… - Henry Kissinger

We fought a military war; our opponents fought a political one. We sought physical attrition; our opponents aimed for our psychological exhaustion. In the process we lost sight of one of the cardinal maxims of guerrilla war: the guerrilla wins if he does not lose. The conventional army loses if it does not win. The North Vietnamese used their armed forces the way a bull-fighter uses his cape — to keep us lunging in areas of marginal political importance.

The study of history offers no manual of instructions that can be applied automatically; history teaches by analogy, shedding light on the likely consequences of comparable situations.

I was intellectually convinced that Hanoi would settle only if deprived of all hope of victory by a determined military strategy. But I was emotionally close to many of the more moderate of the protesters who had been my contemporaries at university; therefore I was also the principal advocate in the administration for negotiations for a political solution to give the people of Indochina a genuine opportunity to choose this future. It turned out to be a rough ride, rougher by far than I imagined when I started on the task. Since then, the categories of our national debate on Vietnam have remained largely unchanged, compounded with the passage of time by an amnesia that suppresses events but remembers encrusted hatreds. A balanced judgment on Vietnam continues to elude us - and therefore the ability to draw lessons from a national tragedy which America inflicted on itself.