Can US air strikes save Iraq from ISIL?

US President Barack Obama, who had pledged not to interfere in other countries' affairs, authorized US military on Friday to carry out "targeted air strikes" against extremists in Iraq. His decision can be seen as a response to compelling situations in the Middle East.

Tens of thousands of people, many of whom are members of the Yazidi (Kurdish) community, are trapped in the Sinjar mountain area by Islamic State of Iraq and the Levant extremists. And given the ISIL's record of belligerence and cruelty, it is feared that the Yazidis could be massacred.

Worse, ISIL forces could enter Erbil, capital of the Kurdish autonomous region of Iraq, where Americans man several US agencies. Even if the ISIL fail to seize the city, their members could enter it in small groups and launch attacks, threatening US citizens' lives and causing grave political reactions in the US.