Syrian civil war: The Syrian Democratic Forces (SDF) declare victory in the Raqqa campaign.

The Syrian civil war began with the Syrian revolution in March 2011, when popular discontent with the Ba'athist regime ruled by Bashar al-Assad triggered large-scale protests and pro-democracy rallies across Syria, as part of the wider Arab Spring. The Assad regime responded to the protests with lethal force, sparking a civil war. The Syrian revolution lasted almost 14 years and culminated in the fall of the Assad regime in December 2024. Many sources regard this as the end of the civil war.

The Syrian Democratic Forces (SDF) is a Kurdish-led coalition of U.S.-backed left-wing ethnic militias and rebel groups, and serves as the official military wing of the Democratic Autonomous Administration of North and East Syria. Founded on 10 October 2015, the stated mission of the SDF is to create a secular, democratic, and federalized Syria. The SDF is opposed by Turkey, who view the group as an extension of the Kurdistan Workers' Party (PKK), which it has designated a terrorist group. On 10 March 2025, the SDF agreed to integrate into Syrian state institutions under the Syrian caretaker government. Mazloum Abdi met with the committee formed by Ahmed al-Sharaa to implement the deal; further meetings were planned for April.

The Raqqa campaign was a military operation launched in November 2016 during the Rojava–Islamist conflict by the Syrian Democratic Forces (SDF) against the Islamic State (IS) in the Raqqa Governorate, with the goal of isolating and eventually capturing the Islamic State's capital city, Raqqa. The SDF's subsidiary goals included capturing the Tabqa Dam, the nearby city of al-Thawrah, and the Baath Dam further downstream. The campaign ended successfully in October 2017, with the capture of the city of Raqqa.

October 20 is the 293rd day of the year in the Gregorian calendar; 72 days remain until the end of the year.