Appomattox is an opera in English based on the surrender ending the American Civil War, composed by Philip Glass, with a libretto by the playwright Christopher Hampton. The work had its world premiere at the San Francisco Opera on October 5, 2007, with a cast that included Dwayne Croft as Robert E. Lee and Andrew Shore as Ulysses S. Grant. The revised version commissioned and premiered by the Washington National Opera on November 14, 2015, expanded the work from 90 minutes to 160 minutes and added roles for Martin Luther King Jr. and Lyndon Johnson.