Why not to talk about Iran foreign policy or freedom in North Korea?
Aside from being a red herring, no reason.
I live in the Empire. I don't live in Iran or North Korea. But since you brought it up...
Iran, established in it's current borders during the British Mandate, formerly part of the Persian Empire. A State of (if memory serves) 27 million people, has a foreign policy of keeping their head down and flapping their tongues. They have never in their modern history invaded another country, unless you count pushing the Iraqi army back some twenty kilometers across the border in repelling their invasion.
During that same period, how many nations has the USA invaded (fuck the pretext, just the number.)
I don't know. I was born in the latter part of the first half of that history. But off the top of my head I get, in my lifetime or just before it, Vietnam, Laos, Cambodia, Haiti (twice), Grenada, Afghanistan, Iraq, Somalia, Ethiopia, Yugoslavia, Panama, Columbia (repeatedly)... And I know this is not a complete list.
During the aforementioned time frame, Iran has pushed for, gotten, and enforced economic sanctions (which only ever strengthen the radicals under them) against, again, no country. The Empire has pushed for, gotten, and enforced so many international sanctions that even THEY lose track.
Your flag waving is annoying, to say the least, but you should REALLY pick better negative examples. Just because the master whose boots you lick so lovingly wants to invade Iran doesn't make them a good negative.
As for the comic opera that is North Korea?
What foreign policy? Glare at US troops across the DMZ?
You're not comparing apples to oranges, you're comparing apples to rocks. They don't even bear the relationship of both being fruits.