Best signals source reports that Iran is over-confident, aggressive, ready for UN sanctions, U.S. aggression, any and all challenges to its authority as a messianic empire that is committed to armed struggle at the end of days.
In Iraq, Iran is in control of intelligence and security apparatus in the fledgling, incoherent, compromised Iraqi government. The Shia of Iraq have more weapons than the U.S. forces in Iraq, and Iran, in control of the Shia militants, can adjust to any U.S. plan.
In the nuke confrontation, Iran is indifferent to the UN sanctions because it already is a nuclear armed power and is eager to demonstrate its fierceness in confrontation or in a strike-counterstrike scenario. Iran's surrogates in Iraq, in Al Q, in Lebanon and Gaza and the West Bank are ready to attack Israel and the U.S. to harass and undermine confidence in the American security regimes of Iraq and Israel.
Ahmadinejad, the IRGC and the Council of Elders (mullahs) have prepared the Iran defenses not only to ride out a US/Israeli air strike but also to retaliate with a full range of weapons against the U.S. and against the Persian Gulf shipping lanes.