Zero problems with neighbors lay at the core of Davutoglu s (Turkeys foriegn minister) influential book 'Strategic Depth,' published in 2001. Annual trade with Russia has since soared to $40 billion. Syrian-Turkish relations have never been better. Turkey s commercial sway over northern Iraq is overwhelming. It has signed a free trade agreement with Jordan. And now Turkey says it aims - United Nations sanctions notwithstanding - to triple trade with Iran over the next five years.