L’one has a monotonous and cold tone. The other has the eruptive verb. But Vladimir Putin and Recep Tayyip Erdogan speak the same language. In September 2021, in his summer residence in Sochi, on the shores of the Black Sea, the Russian president warmly welcomes his Turkish counterpart.“Sometimes negotiations are not easy, but they end with a positive result. Our services have learned to find compromises favorable to both parties”welcomes Vladimir Putin after a long interview. “There is a great benefit that Turkey and Russia continue to strengthen their relations”, commented Erdogan, crossing the Black Sea back to Istanbul. The two men are about the same age, 69 for Putin, 68 for Erdogan. Both reign…