An engraving at the French National Library shows the ratification of the Peace of Westphalia in Nuremberg, Germany, on June 16, 1650. (Roger Viollet/Getty Images)
Turkish soldiers and Ankara-backed Syrian Arab fighters pose for a group photo in the Kurdish-majority city of Afrin in northwestern Syria after seizing control of it on March 18, 2018.(Omar Haj Kadour/AFP/Getty Images)
Turkish President Recep Tayyip Erdogan holds his ballot before casting his vote for Turkey's legislative election at a polling station in Istanbul on June 7, 2015. (Ozan Kose/AFP/Getty Images)
A Syrian man holds the Iranian flag as a convoy carrying aid provided by Iran arrives in the eastern city of Deir Ezzor on Sept. 20, 2017. (LOUAI BESHARA/AFP/Getty Images)
Recep Tayyip Erdogan, flanked by his deputy Ali Babacan and Central Bank Governor Erdem Basci with the symbol for the national currency, the Turkish lira, during a ceremony in Ankara, on March 1, 2012. (ADEM ALTAN/AFP/Getty Images)
Shiite cleric Moqtada al-Sadr attends the demonstration against the western bombings of Syria, which he called for, on april 15, 2018, in Najaf. (HAIDAR HAMDANI/AFP/Getty Images)
A torn up campaign poster for Iraqi Prime Minister Haider al-Abadi, for the upcoming parliamentary elections in the capital of the northern Iraqi Kurdish autonomous region Arbil. (SAFIN HAMED / AFP)