23rd World Energy Congress in Istanbul

(From L) Turkey's President Recep Tayyip Erdogan, Azerbaijan's President Ilham Aliyev, Russia's President Vladimir Putin, and Turkey's Prime Minister Binali Yildirim attend the 23rd World Energy Congress on October 10, 2016 in Istanbul..Russian President Vladimir Putin visits Turkey on October 10 for talks with counterpart Recep Tayyip Erdogan, pushing forward ambitious joint energy projects as the two sides try to overcome a crisis in ties.. / AFP / OZAN KOSE
(Oct. 9, 2016 - Source: AFP)