why iraq and america always war?

Its not always, but twice is about slighly more than a decade does seem pretty frequent. The first was understandable, to intervene to stop a war launched against Iran. The second was unforgivable, the slaughtering of so many innocent Iraqi civillians by the US soldiers amidst the pretense of finding Weapons of Mass Destruction (which to date has not been found), when what Bush really wanted was oil from Iraq.