You have to remember the time this song was written, was back in during the Viet Nam war. Some of the references are linked to the war protests. I think when IA said "but they don't know what their fighting" there is a reference to the power of the establishment that dictate these types of wars and the futility of smashing up against those power structures. His Heavy Horses has a similar theme, or Jack in The Green- putting aside technology and the madness of the modern social order in favor of a more natural and less polluted/conflicted world.
You have to remember the time this song was written, was back in during the Viet Nam war. Some of the references are linked to the war protests. I think when IA said "but they don't know what their fighting" there is a reference to the power of the establishment that dictate these types of wars and the futility of smashing up against those power structures. His Heavy Horses has a similar theme, or Jack in The Green- putting aside technology and the madness of the modern social order in favor of a more natural and less polluted/conflicted world.