The situation in Syria aggravated on July 13 when clashes between Arab tribal militias and Druze self-defense groups broke out in the heavily Druze-populated Sweida governorate MOSCOW, July 18. /TASS/. Presidents of Russia and Turkey, Vladimir Putin and Tayyip Erdogan, held a telephone conversation on Friday discussing in particular the developments in the Middle East, and especially in Syria, the Kremlin’s press office said in a statement. "Opinions were exchanged regarding the current