Iran is not the US' responsibility. We don't own them or that part of the world. Neither does Israel. Get over it. It was neither Bush's responsibility nor is it Obama's. We are neither Rome nor Great Britain, nor do the vast majority of us want to be. Build your own empire if you think you can. You seem to get off on ruling other people who don't like your rule.
Australia urges Europe to attack ISIS to stop refugee influx (dpa)
from the article: Iran, Russia begin fueling Bushehr nuclear power plant