Everbody here who thinks it will be a cakewalk should rethink. Will your troops be aboard the ships? Will your country put troops on the ground in Iraq to stave off the counter-attack? Can we count on 100,000 from Germany or 25,000 from Canada, or 25,000 from Israel? How about 200,000 from France or 200,000 from the UK? Or you could just enlist in the US Armed forces. Uncle Sam is offering bonuses for those volunteering for frontline duty. You don't even have to be a citizen to join up.
U.S. serviceman killed by ISIS in Iraq was Navy SEAL, official says (Reuters)
from the article: U.S. army chief: Iraq war has sapped ability to fight Iran