As the attacks by Iran and Israel continue into their sixth day, here's a look at what we know about the conflict, and if the US will deploy troops.

Israel may succeed in taking out Iran’s air defenses, ballistic missiles and much of its nuclear program. But that would still leave hundreds of thousands in the military, the Revolutionary Guard and forces known as the Basij, who played a key role in quashing waves of anti-government protests in recent years.

Israelis now realize that a tit-for-tat with Iran is nothing like a barrage of rockets from Palestinian militants in the Gaza, or from Hezbollah fighters in southern Lebanon. The