UN welcomes ceasefire efforts and planned Astana talks

Iran said Russian use of its Hamadan air base had ended for the time being, revealing sensitivities over foreign military access and publicity around the arrangement.

Iran and Russia held a groundbreaking ceremony for the Bushehr II nuclear expansion, advancing the two additional reactor units contracted in 2014.

Russia announced that deliveries of S-300 air-defence systems to Iran were complete, marking the supply milestone after years of dispute and renewed negotiations.

Iran and Russia signed state export-credit agreements for a thermal power plant and electrification of the Garmsar–Incheh Borun railway, linking finance to infrastructure projects.

The foreign ministers of Iran, Russia and Turkey issued a joint declaration in Moscow supporting a Syrian political settlement and setting out principles for further cooperation.

Syrian government and armed opposition representatives began talks in Astana, supported by Iran, Russia and Turkey, with the UN participating in efforts to strengthen the ceasefire.

Hassan Rouhani and Vladimir Putin held talks in Moscow and issued a joint statement advancing nuclear, economic and regional cooperation, alongside agreements signed during the visit.

Iran, Russia and Turkey signed a memorandum in Astana to establish de-escalation areas in Syria, assuming guarantor roles in an effort to reduce fighting.

Iran hosted the second trilateral summit with Russia and Azerbaijan in Tehran, continuing the regional dialogue begun in Baku and discussions of practical cooperation.

Rouhani, Putin and Recep Tayyip Erdogan met in Sochi and issued a joint statement on Syria, linking their Astana cooperation to efforts toward a political process.