The attempt by Commander Michael Burnham in 2256 to seize control of the USS Shenzhou from Captain Philippa Georgiou and fire first on a Klingon vessel, for which she was imprisoned for life.
When the Shenzhou found a Klingon ship at a damaged relay near the binary stars, Burnham consulted Sarek and learned that the Vulcans had won Klingon respect by always firing first. Georgiou refused to act against Starfleet principle.
In The Vulcan Hello Burnham disables her captain with a nerve pinch and orders the attack. Georgiou recovers in time to stop it and has her confined. The battle that follows costs Georgiou her life and begins the Federation-Klingon War.
In Battle at the Binary Stars Burnham pleads guilty at her court martial and is sentenced to life imprisonment as Starfleet's first mutineer. Captain Lorca later takes her aboard Discovery, and her record is cleared at the war's end in Will You Take My Hand?