It looks like the intervention will not be limited with preemptive strikes or local clashes. There will be a war all thru the region. Since the southern Iraq is controlled by Iran, this time Israel will have a direct front with Iran thru the Syrian and Lebanon borders. So it is worth watching.
12 Iraqi troops, militiamen killed in multiple ISIS suicide attacks (AP)
from the article: U.S. Navy: We will not allow Iran to stop flow of oil