May Day celebrations in the "9th of September Square" in Sofia, Bulgaria. Marching troops of workers, men and women, and troops of children through the streets of the capital. The marching troops carry with them the posters of their leaders, including the late Georgi Dimitrov. They cheer and express their respect for the Soviet Union. Members of the Government and political leaders, including Vulko Chervenkov, are saluted by the marching people and troops.
German invasion of Eastern European countries during World War II. Maps of Manchuria and Ethiopia. Newspaper headlines. Maps of various European countries conquered by Nazi Germany including Poland. Newspaper printing press running. Newspaper headlines declaring war against Germany. Herald newspaper headline reads, WAR. Animated map of Germany shows the Nazi symbol spreading across Europe with fire. German Chancellor Adolf Hitler and officers at a map as they confer. Maps of Hungary, Romania and Bulgaria. Hungarian pheasant farmers gather grain in Hungary. Ore car heaped with bauxite in Hungary. Aluminum sheet rolling down conveyor belt. German aircraft parked in line with propellers spinning. Hungarian soldiers marching in parade with crowd giving Nazi salute. Grain pouring into holding bin. Oil derricks in Romania. Romanian soldiers marching in parade. Animated map depicts the importance of cities of Varna and Burgas in Bulgaria for their submarine bases in the Black Sea. Admiral Miklos von Nagybanya Horthy of Hungary, Prime Minister of Romania General Ion Antonescu, King Michael of Romania and King Boris of Bulgaria. Newspaper headlines include 'Bulgarian King Joins Axis', "Bulgarian Revolts Bring 1200 Arrests', 'Riots Sweep Romania', and 'Hungarian Revolt Brewing' German motorcycles with sidecars driving into Hungary. German artillery being towed into Hungary. German soldiers driving halftracks drive into Romania and Bulgaria. Animated map depicts the plan for invasion of Greece.
Prince of Bulgaria Ferdinand I in Bulgaria during World War I. Ferdinand I with wife Eleonore Caroline Gasparine Louise arrives to review a parade. They review the parade. Troops march
Various Balkan League leaders. King Peter I of Serbia talks to another man. They sit on chairs in an elaborately decorated tent. They sit in a horse carriage. Men stand in the background. The Tsar of Bulgaria, Ferdinand I, in view. He sits in a carriage. Men riding horses. Troops lined on a street. Men stand on the balcony of a building. King Carol I of Romania walks with the Queen. They walk through a garden and stand near a bench.
Bulgarian King greets government and military officials in Sofia, Bulgaria. King Boris III of Bulgaria greets the officials. Bulgarian troops march with rifles in hands. The officials review troops and salute. Bulgarian Prime Minister, Bogdan Dimitrov Filov also among the dignitaries.
A crowd gathers at the Axis legation in Sophia, Bulgaria. They gather to celebrate Bulgaria's adherence to the Tri-Partite pact. Nazi flags in front of the building. A dignitary comes out on the balcony of the building. He waves at the crowd.