Rouhani has travelled to Ankara at the official invitation of Turkish President Recep Tayyip Erdogan to take part in the fifth round of trilateral summit of Iran, Turkey and Russia –the three guarantors of the Astana peace process for the resolution of Syria crisis.
In addition to the tripartite summit, the presidents of Iran, Russia and Turkey are going to hold negotiations on the promotion of mutual cooperation on various economic issues and the regional communications.
President Rouhani is also planned to hold separate meetings with Erdogan and Russian President Vladimir Putin for talks on the major bilateral, regional and international issues.
Iran, Russia and Turkey are guarantor countries that brokered a ceasefire in Syria in December 2016, leading to the Astana talks, which are running parallel to the Geneva peace talks.
The leaders of the three countries regularly meet for an assessment of the process which focused on Idlib and adjacent areas – the last stronghold of the rebels – and a political process which awaits the formation of a constitutional committee.