"The Syrian crisis cannot have a military solution and can only be settled through a peaceful political procedure," according to the statement endorsed by the presidents of Iran, Russia and Turkey. The presidents of Iran, Russia, and Turkey held a summit in Tehran on Friday to discuss the situation in Syria's Idlib. The summit also sought collaboration of international humanitarian institutions and agencies to help Syrian displaced people return home and to regular life. Cooperation to annihilate militants of the Islamic State group (ISIS) or the AL-Qaida-linked Nusra Front, was another major agreement in the summit. The next tripartite meeting will be held in Russia.