The video quotes Hugo's long poem for the Paris Commune. What's its name?

The video quotes a long poem written by Hugo for the Paris Commune called "The Internationale". The Internationale is the war song of the proletariat all over the world. Lyrics were written by Eugè ne Pottier on June 187 1 day and set by pierre degeyter on June 1888. The score was first published on June 23rd 1888.