Perhaps you have things a bit backwards. The US wasn't trying to conquer North Vietnam. North Vietnam was trying to conquer South Vietnam (for a political-eco

Perhaps you have things a bit backwards. The US wasn't trying to conquer North Vietnam. North Vietnam was trying to conquer South Vietnam (for a political-economic "principle"). The US was, yes, trying to stop expansion of a political-economic principle that the US considered hostile, but also to defend South Vietnam from attack. Why, in your view, does the US get the blame rather than North Vietnam and/or the USSR?