John Hawkins:

The last major war the United States was involved in was Vietnam. The modern Democratic Party leadership all came of age during that war, as did most of the editorial staff in the manistream media. It wasn’t just a defining moment in the modern American left, it was the defining moment, the prism through which the left would view the world from that moment on. Vietnam was justification for every pacifist tendency that every liberal has ever had. When they said that war didn’t solve anything, they could point to Vietnam. When they wanted to show the consequences of war, they could point to Vietnam. When they wanted to show the failure of military force as a tool for political change, they could point to Vietnam. It was the last major war this country was ever involved in. Sure we’ve had military operations, from Grenada to the Gulf War to the Balkans, but Vietnam our last big one, and it was a war we ended up losing. Vietnam has been their de facto answer for everything for the past 30 years.

Iraq threatens their entire belief system. [Emphasis added. --R]