athens tayyip erdogan travel greece dec. 7-8 greek source say friday first visit turkish president decades see tie time severely strain issue aegean sea right ethnically-split cyprus erdogan expect meet greek counterpart prime minister alexis tsipras discuss bilateral relations security issue refugee crisis follow 2016 eu-ankara deal aim reduce migrant flow europe also expect visit thrace northern greece muslim minority erdogan last visit fellow nat member greece 2010 capacity prime minister visit next week first turkish president greece 65 years greece turkey nato ally come brink war 1996 ownership uninhabited aegean islets relations improve since still odds issue territorial dispute cyprus remain divide greek turkish cypriot communities live either side u.n.-monitored ceasefire line eight turkish soldier commandeer helicopter fly northern greece fail coup unfold erdogan july 15 16 2016. turkey repeatedly demand greece hand greece high court reject extradition greek police tuesday arrest nine turkish citizens late charge terrorism-related offences accuse hoard explosives link outlaw militant organization responsible suicide bomb turkey deny wrongdoing nl8n1nz39f turkey 's erdogan make historic visit greece next week