ANKARA In a growingly unpredictable world, Türkiye’s contribution to the collective security of NATO is invaluable, the chief of the alliance, Mark Rutte said, in his first visit to Ankara after taking office. NATO Secretary-General Mark Rutte paid a one-day visit to Ankara on Nov. 25. It was his first official trip after taking the helm of the 32-nation alliance on Oct. 1, from former chief Jens Stoltenberg. In Ankara, he met President Recep Tayyip Erdoğan , Foreign Minister Hakan Fidan and