Turkish Prime Minister Recep Tayyip Erdogan at a news briefing in a ceremony for signing agreements between Iranian and Turkish officials in Tehran on Jan. 29, 2014.

Ebrahim Noroozi—AP

Turkish Prime Minister Recep Tayyip Erdogan at a news briefing in a ceremony for signing agreements between Iranian and Turkish officials in Tehran on Jan. 29, 2014.

Turkish Prime Minister Recep Tayyip Erdogan at a news briefing in a ceremony for signing agreements between Iranian and Turkish officials in Tehran on Jan. 29, 2014.

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