We lost in Vietnam because politicians gave up. Nixon had all but won in 1971. If your head was not so far up your butt you might want to read what the North Vietnemese military has to say about TET68 and the 1975 invasion, and how surprised they were that the United States just quit.
No revision necassary. Except by liberals that want to turn WW2 into aggression and murder on our part and Viet nam into a military defeat, which it was not.
As to Iraq, when the troops are more afraid of firing their weapon then defending themselves and their team mates because of rules of engagement that read like a Dr Zeus childs story, then those troops most assuradely have their hands tied behind their back. When our military can not get free fire permission on porous borders with enemies slipping across tons of material and hundreds of fighting men without those same terrorists claiming " it was a wedding party" when ever one of their gatherings are attacked, with the press eating it up like candy, then our troops have their hands tied behind their back.
When our troops can be charged with murder for conducting legitamite clearing operations against armed resisting terrorists/ Insurgents because some civilians died in the process, then our troops have their hands tied behind their back.
When a terrorist is shown on tape being shot and the press and the liberal whine machine claim that our soldiers should have "arrested" him rather then shoot him , then our soldiers most definately have their hands tied behind their back.
When a couple bad apples get caught and punished by the military for abuse or real murder and the Liberals and the press are free to claim the entire military is like that, then our troops have their hands tied behind their backs.
When the press can hide in the green zone, hire Iraqis and tell them what story they want, supply the unproven story to the evening news and it is called cutting edge reporting, all while refusing to print DoD provided information on reconstruction, repair, relief and security operations, because that is propaganda, then our troops have their hands tied behind their back.
When the press refuses to cover operations because they are being successful and they would rather report failure, then our troops have their hands tied behind their backs.
When fools can claim Reagan and Bush sold Saddam Hussein chemical weapons AND be believed.... we have a real problem.