North Korean Liberation?

I've wondered lately cant help but to notice when the media tends to bombard you with it 24/7. We tend to help as much as we can, we have our charities we have our organizations they help in any way they can like the poverty and famine in most African towns have to suffer with on a daily basis. ........We "liberated" "Invaded" Iraq as many would say. Honestly i don't care which you call it. what i see is the faces of the people who've been freed from what some might call hellish times. I was watching this doentary on CNN of how horribly North Koreans really live and my question is Why?, Why haven't we ever taken action against something like that. I can understand that we have no relations which that country. And War is deadly, pain full, and extremely costly. for Christ sakes there only means of fertilizer is crap that falls from trains. Don't they deserve the right of freedom too.