istanbul turkey say friday huge banner jail kurdish militant leader abdullah ocalan unfurl central raqqa u.s.-backed kurdish force would harm already fraught relations ankara washington banner ocalan raise thursday ceremony mark raqqa capture islamic state campaign spearhead kurdish syrian ypg fighters military support unite state turkey consider ypg extension ocalan kurdistan worker party pkk wag three-decade insurgency turkey southeast designate terrorist organization unite state european union turkey ankara say weapons supply fighters syria end pkk hand threaten turkish security wonder evidence u.s. need accept ... ypg terrorist organization turkish prime minister binali yildirim tell reporters leave mosque istanbul display photograph pkk terrorist leader damage u.s.-turkey relations seriously move u.s. cooperate terrorists endanger future syria banner ocalan raise thursday all-female kurdish militia kurdish ypg commanders fighters also show chant long live apo ocalan know followers video celebrations distribute ypg press office president tayyip erdogan echo yildirim condemnation u.s. explain poster ocalan raqqa way cooperate us struggle terror say stand us terrorism allow ocalan jail turkey since 1999 treason conviction negotiate truce prison cell ceasefire break two years ago thousands die mainly kurdish southeast turkey renew violence since banner incident come amid diplomatic spat ankara washington detention turkish employee u.s. consulate istanbul see two countries suspend visa service citizens turkey say kurdish militant banner raqqa show u.s. side terrorists