The Great Middle East Project where Iran has a role of no small importance is of great interest to Washington. After Iran agreed upon allowing IAEA (International Atomic Energy Agency) inspectors to its nuclear units, the USA has almost no reason to unleash war. Remembering the case with Iraq, there are no particular reasons to launch any military actions. The whole question is how righteous they are and whether Washington will decide on the war, which may end like the War in Iraqi, i.e. will never end at all.