Sure, so they can possibly kill some Israelis. Right?
I fail to see what our troops in Iraq and Afghanistan do for Israel. Also, Israel is the most powerful country in the region. It seems to be doing fine in defending itself, and what the US has done in the Middle East in the past 13 years has only made things more dangerous for Israel.
Muslims hate each other even more than they hate Christians, Jews, and Americans. If the Sunnis and Shia want to slaughter each other, let them have at it.