The celebration of the 1 st May in Bulgaria (Sofia), Poland (Warsaw), Romania (Bucharest), GDR (Berlin), Vietnam (Hanoi), Czechoslovakia (Prague), Hungary (Budapest), Northern Ireland (Belfast), France (Paris ), Japan, Chile (Santiago), Italy (Rome), Mexico. Speakers: G. Husak, L. Svoboda, J. Kadar, J. Marchais, J. Duclos, S. Allende. Northern Ireland, Belfast. A military patrol on the streets. The car bombing.