Backdropped by Turkey's flag officials wait for an event to be attended by Turkey's President Recep Tayyip Erdogan and Russian President Vladimir Putin, marking the completion of one of the phases of the Turkish Stream natural gas pipeline, in Istanbul, Monday, Nov. 19, 2018. The two 930-kilometer (578-mile) lines when finished are expected to carry 31.5 billion cubic meters (1.1 trillion cubic feet) of Russian natural gas annually to European markets, through Turkish territories.(AP Photo/Lefteris Pitarakis)
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