Turkey has long been seen as a bridge between Europe and the Middle East — geographically as well as diplomatically. As tensions rose between Washington and Tehran, Ankara had first attempted to mediate, warning that it would be "wrong to start the war again." "Iran is ready to negotiate on the nuclear file again," Turkish Foreign Minister Hakan Fidan told the Qatar-based Al Jazeera news network in an interview late January. "My advice has always been to our American friends: close the files