<p>Vietnam. So long ago yet so vivid still in the minds of so many. Long enough ago that the history of the conflict is now taught in high schools and colleges – all too often by young men and women too young to have served there if – in fact – they served at all.</p>
<p>Vietnam. A name conjured up now whenever somebody wants to question what is happening in Iraq. Another Vietnam, they say. Another debacle for America.</p>