Celebrating May 1 in cities: Sofia, Ulan Bator, Warsaw, Bucharest, Prague, Dortmund, Tokyo, Paris, Mexico City. Parade of athletes, demonstrations of workers. Fighting of the liberation of the patriotic forces of the Cambodian troops against the Saigon regime. Puppet troops evacuated by helicopter. Greece. The trial of members of antidiktatorskoy organization, Panhellenic Liberation Movement, opposed to the regime of black colonels. England. Strike of railwaymen working for higher wages. Passengers at the station waiting for a train. Germany. 26-th International Industrial Fair in Hannover. Customers visiting the exhibits of the exhibition. Aviation exhibition and sale at the Hanover airport.