Operetta in three acts by Johann Strauss II, libretto by F. Zell (Camillo Walzel) and Richard Genee, premiered 25 November 1881 at the Theater an der Wien. Sources: https://en.wikipedia.org/wiki/Der_lustige_Krieg and https://de.wikipedia.org/wiki/Der_lustige_Krieg . Created because a rip of a complete concert performance (Munchner Rundfunkorchester / Ulf Schirmer, Munich, 7 March 2004) had no opera to file under; findopera already holds Die Fledermaus (202) and Der Zigeunerbaron (1055) by the same composer, so operetta is in scope. operaclassId left unset - the existing Strauss operettas carry different values (229, 996) and I could not determine the right one.