Why USA want to resolve the issues concerned only with ASIA?  

Lol, the US isn't there to bring peace to a region that has had enough unrest all by itself. The US is there to hunt down Osama bin Laden and his fellow terrorists, who chose to hide out in Afghanistan/Pakistan territory. Hand them over and the US is gone. However, it's doubtful you'll find peace as the Taliban has its heart set on taking over Pakistan. They have been moving more and more into Pakistani territory. And on the other border you have India. Pakistan-India relationships have been strained for decades. The recent terror attacks on India and the looks of it that Pakistani terror organizations are behind it, well that doesn't help matters there. Don't worry, the US won't help out there, lol. No, sorry, can't blame the US for everything. As I said, hand over bin Laden and his cronies and the US troops will leave and let you handle your own mess.

kaleem, what people forget is that war is the means through which the US government generates revenue! The US government has never figured out how else to generate revenue other than from war. Notice what is happening in the US? The US and its allies had banked on exploiting Iraq after they invaded Iraq in March 2003; they however forgot that Iraqis, like several people of "third world" nations, are not that gullible! They had counted on easy looting; or so they thought!