Each star on this map marks the location of a military base of the United States - in Turkey, Iraq, Saudi Arabia, other Gulf states, Pakistan, Afghanistan, and into the ...stans. The blue in the center (not well distinguished from the Caspian Sea and other water) is Iran.
[I]magine if the blue in that map were the U.S... and the large red areas were Mexico and Canada... and the stars represented Iranian military bases. Then further imagine that Iranian political leaders and media figures routinely told their population that it was the U.S. that was an aggressive, threatening power that had to be stopped: the mocking condemnations of that level of propaganda would be endless. Yet American political officials and commentators feel free to insist, with a straight face, that Iran is an aggressor nation posing a serious threat to the U.S.: such a serious threat, in fact, that war may be necessary to stop it.
Let me be quite clear here; I'm not saying that the Iranian leadership are good guys. I'm just using the graphic to show that there might be reasons for them to feel threatened.