athens greece turkey square old dispute thursday state visit athens president tayyip erdogan quickly descend verbal spar list historical grievances design boost relations two nations first visit turkish president 65 years quickly turn blunt grudge-fest nato ally two countries agree revive consultation process confidence-building measure prime minister alexis tsipras say end first day side appear pull back threaten massive diplomatic flop lot unite us divide us long greek president prokopis pavlopoulos tell state banquet erdogan honor live side side erdogan say translation provide greek state tv aim build future differently unity coexistence solidarity say early erdogan turn expect staid welcome ceremony unprecedented bout diplomatic spar host differences topics vent range discrimination muslims northern greece turkey military presence ethnically-split cyprus loose interpretations international treaty define border two countries 1923 treaty lausanne cover range issue define border modern-day turkey extension greece erdogan tell greek media outlets even land treaty need revision put greeks defensive mode noon meet pavlopoulos rule change treaty stern-looking erdogan seat beside say detail treaty require clarity though erdogan focus religious right turkish muslim community northern greece say also problems military topics truth little confuse regard put table modernize update comply lausanne treaty tsipras say news conference erdogan stand side show-stopper long exchange erdogan greek president show-stopper however bedrock friendship say pavlopoulos refer treaty pointedly tell vip guest professor law flaw need review update say erdogan respond say treaty sign 94 years ago apply greece turkey also include countries japan also suppose protect turkish minority northern greece erdogan say still discriminate find treatment greek citizens turkey erdogan say 30-minute back-and-forth exchange note slip pavlopoulos minister erdogan first turkish president visit athens since 1952. best make sure next visit take place next 150 years say wolfango piccoli co-president teneo intelligence northern greece erdogan say greece insist call turkish community muslim rather use term turkish 100,000 area know western thrace accept word turk write outside school say erdogan due visit region friday tsipras tell erdogan sensitivities religious freedoms greek government say move ahead reconstruction series mosques around country yet cross mind hold orthodox religious ceremony fethiye mosque athens wrongly view take place repeatedly hagia sophia say impose structure istanbul church convert mosque museum read koran hagia sophia recent years nato partner teeter brink war 1974 1987 1996 long-running dispute ethnically divide cyprus mineral right aegean sea sovereignty uninhabited islets sea allow re-entry nato erdogan tell pavlopoulos refer departure greece bloc 1974 turkey invasion cyprus response brief greek-inspired coup rejoin 1980. us able rejoin erdogan say relations improve many greeks believe turkey territorial aspirations country issue erdogan say least two occasion case greece turkey trade barb erdogan visit athens