The 1966 Syrian coup d'état (also known as the 23 February Movement) refers to events between 21 and 23 February during which the government of the Syrian Arab Republic was overthrown and replaced. The ruling National Command of the Arab Socialist Ba'ath Party were removed from power by a union of the party's Military Committee and the Syrian Regional Branch, under the leadership of Salah Jadid.
The coup was precipitated by a heightening in the power struggle between the party's old guard, represented by Michel Aflaq, Salah al-Din al-Bitar, and Munif al-Razzaz, and the radical leftist factions adhering to a Neo-Ba'athist position. On 21 February, supporters of the old guard in the army ordered the transfer of their rivals. Two days later, the Military Committee, backing the radical leftist factions, launched a coup that involved violent fighting in Aleppo, Damascus, Deir ez-Zor, and Latakia. As a result of the coup, the party's historical founders fled the country and spent the rest of their lives in exile.