Rescue opera rescue opera; Luigi Cherubini's "Lodoïska" (1791) has also been named a founding work of the genre. Other examples from the end of the eighteenth and beginning of the nineteenth century, the period when rescue opera flourished, are Nicolas Dalayrac's "Camille ou Le souterrain" (1791), Jean-François Le Sueur's "La caverne" (1793), and Cherubini's "Les deux journées" (1800). While the rescue opera was primarily a French genre, the two best-known operas in the genre are not French. Ludwig van Beethoven's "Fidelio" is by far the most famous example today, and was also influenced by the German "Singspiel". A work which is similar
Unity is Strength the Second Sino-Japanese War. Unity is Strength was jointly written in June 1943 by Mu Hong, also the composer of I Love the Eighth Route Army and a major contributor to the production of the Yellow River Cantata, and Lu Su, another well known Chinese communist musician. Allegedly, the song was written in only three days after the lukewarm reception of an opera they had produced under the same name. After facing criticism that the opera ended too abruptly, the two wrote Unity is Strength as a finale act. The piece was written in a small mountain village in Shaanxi