we should have just nuked the Vietnamese back then . We were the first country had nuke and used it. if we wanted to rule the world, we would had just nuked everybody right after we bombed Japan. Frankly speaking, if we are willing to do whatever it takes to stop iran, we would nuke them and within a week iran is gone. Trust me when i say this, I am not even being creative.I am sure Americans were also "fully prepared" when they went into Vietnam. Being prepared does not mean they will have outcomes that they desire.