U.S.–Russia peace proposals on Syria

2013 proposals

A joint United States–Russia proposal was issued in May 2013 to organize a peace conference on Syria

The effectiveness of the negotiations and possible conference were questioned by Andrew Tabler of the Washington Institute for Near East Policy, who stated: "Washington is using the conference to buy time, but buy time for what? The country is melting down."

Geneva II

The Geneva II is a United Nations (UN) backed peace conference that took place in Geneva in January 2014 with the aim of stopping the Syrian Civil War and organizing a transition period and post-war reconstruction.

In a previous Geneva meeting on 30 June 2012 (i.e. "Geneva I"), "major powers" agreed on the principle of a political transition, "but failed to stop the war". The key aim of Geneva II would be to get all parties to agree on the principle of a political solution, and then build on Kofi Annan's peace plan and the 30 June 2012 meeting.

Chemical arsenal disposal agreement

Following Ghouta chemical attacks in Syria in August 2013, the United States Congress began debating a proposed Authorization for the Use of Military Force Against the Government of Syria to Respond to Use of Chemical Weapons (S.J.Res 21), although votes on the resolution were indefinitely postponed amid opposition from many legislators and tentative agreement between Obama and Russian President Vladimir Putin on an alternative proposal, under which Syria would declare and surrender its chemical weapons to be destroyed under international supervision.

February 2016 US-Russia brokered UNSC ceasefire resolution

On 26 February 2016, the United Nations Security Council adopted resolution 2268 that demanded all parties to comply with the terms of a U.S.-Russian deal on a "cessation of hostilities". The cease-fire came into effect on 27 February 2016. By July 2016, this ceasefire had mostly unraveled and violence again escalated.

September 2016 US-Russia brokered ceasefire

On 10 September 2016, Russia and U.S. reached a deal on establishing a cease fire between the Syrian Assad government and a US-supported coalition of so-called 'mainstream Syrian opposition rebel groups' including umbrella group 'High Negotiations Committee' (HNC), effective from 12 September, while jointly agreeing to continue attacks on Jabhat Fateh al-Sham (former al-Nusra Front) and Islamic State of Iraq and the Levant (ISIL). Russian Foreign Minister Sergei Lavrov said that Russia and U.S. had developed five documents to enable coordination of the fight against Jabhat Fateh al-Sham and ISIL and a revival of Syria's failed truce in an enhanced form.

But on 16 September, the heaviest fighting since weeks broke out at the outskirts of Damascus and air attacks elsewhere in Syria resumed. On Saturday 17 September, Russia accused groups supported by the US to have violated the ceasefire 199 times, and said it was up to the US to stop them and thus save the ceasefire.

Later on 17 September, the US-led coalition with Danish, British and Australian aircraft bombarded the Syrian army near ISIL-dominated territory in northern Syria killing 62 Syrian soldiers, which for the Syrian government proved that "the US and its allies cooperate with terrorists". While the US contended the bombs on Assad's troups were by accident, Russia said it was on purpose. 18 September, bombarding also in Aleppo resumed.

Monday 19 September, Assad's government declared the ceasefire as ended, mainly because of the US-led coalition's attacks on Assad's troops. Soon afterwards a UN food convoy near Aleppo was bombarded or shot at, unclear was by whom.

On 3 October, the US has formally declared the suspension of diplomatic contacts with Russia over the Syrian situation, marking the end of the cease fire deal.