And, what is his suggestion if Iran attacks Israel?

Brezinski Calls for Obama to Shoot Down Israeli Jets; "A Liberty in Reverse"

In a little noticed interview with the Daily Beast (presumably little noticed because serious people don't read the Daily Beast), Zbigniew Brzezinski suggests that Barack Obama do more than just refuse to support an Israeli strike on Iran's nuclear sites -- the American president must give the order to shoot down Israeli aircraft as they cross Iraqi airspace:
DB: How aggressive can Obama be in insisting to the Israelis that a military strike might be in America’s worst interest?
Brzezinski: We are not exactly impotent little babies. They have to fly over our airspace in Iraq. Are we just going to sit there and watch?
DB: What if they fly over anyway?
Brzezinski: Well, we have to be serious about denying them that right. That means a denial where you aren’t just saying it. If they fly over, you go up and confront them. They have the choice of turning back or not. No one wishes for this but it could be a Liberty in reverse.
Contrary to Brezinski's half-hearted disclaimer that no one wishes for such an outcome, there are plenty on the left who would delight in a pitched battle between the United States and Israel. Democrats in Congress routinely support resolutions affirming Israel's right to take whatever steps it deems necessary to assure its own national defense. And Obama has at least paid lip service to the concept. But hostility to Israel among the rank and file is very real on the left -- and among "realists."
So conjure the image -- the Obama administration sending U.S. aircraft up to protect Iran's airspace and it's nuclear installations from an attack by a democracy that is one of America's closest allies. Unfortunately, this may not be so hard to imagine in Israel, where the number of people who believe Obama is pro-Israel is at just 4 percent -- and falling. And given Obama's (literally) submissive posture to the Saudis, his indulgence of the Iranians, and his simultaneously hard-line approach to Israel, it seems even some of Obama's supporters can savor the possibility of a "reverse Liberty."