from that war.
I think that the most important lesson that SHOULD have been learned was,
"Don't embark upon a war where its importance to the nation isn't so self evident that it requires no explanation of its necessity, and where the cause is not so popular and compelling that the burden of fighting is shared among all social classes".
(I know that the rich will never have an EQUAL share of death in any war, but there was a big difference between WWII where people like GHWB and Ted Williams commonly served, and Vietnam and Iraq, where the Kerrys and Pat Tillmans were rare.)
But it seems like the lessons of Vietnam if any are muddled, and there isn't even a clear cut agreement that our involvement was wrong.
There seems to be competing messages:
The Vietnam war was a noble cause, but it was undermined by the media and the protest movement which caused its failure.
The Vietnam war was doomed to failure because it was based on a foundation of lies both in its inception and its day to day conduct.
I think the undeniable, fundamental truth of Vietnam is:
The Vietnam war was doomed to be a failure for the U.S., because the national will of the U.S. to achieve its goal was far exceeded by the will of the North Vietnamese to achieve their goal.
This is a fundamental issue of any war. It's "politics by other means". It's not just a scoreboard of body counts, Vietnam finished with a body count of less than 60,000 for the U.S. and over 2 million Vietnamese dead but a loss for the U.S. Some rightwingers will argue that the will of the U.S. was sapped by a subversive media and antiwar movement, but the fundamental issue was still that the sacrifice required was well beyond what the country was willing to put forth.
Now the invasion of Iraq was certainly "popular" by the measure of polling of the U.S. public at the time of the invasion, meaning the Bush administration's propaganda campaign was successful. But while the idea of invading the country was popular, the will of the nation was never gauged. No specific sacrifice was ever asked of America beyond that demanded of the military, and none is asked even now except the huge budget outlays which we are "committed" to, having started the war, and the ongoing bloodshed from those in the military.
Even the "Powell Doctrine" of not starting a war unless with overwhelming strength so as to assure victory, was seemingly "learned" successfully for Gulf War I, and then "unlearned" for this version. Of course a key difference between Gulf War I and II was that the first did not have an ongoing occupation as part of its mission, so the national will required to win a quick, overwhelming military victory was not great.
It seems likely that the invasion and occupation of Iraq is destined for an ignominious and shameful defeat for the U.S., whether sooner or later. If the consensus lesson
"Don't embark upon a war where its importance to the nation isn't so self evident that it requires no explanation of its necessity, and where the cause is not so popular and compelling that the burden of fighting is shared among all social classes".
can be retained from this misadventure, then perhaps some good can still come to the country and the world from this.
Can we learn the lessons this time?