Operation Danube was the cover name for the invasion of Czechoslovakia by Warsaw Pact armies in August 1968. The fleet of Polish tanks which arrive to liberate their neighbor, ostensibly threatened by a counter-revolution, includes the old tank nicknamed Ladybird, which is the last to leave the barracks.

• In Film Praha
• Odra Film
• Jiří Menzel
• Zbigniew Zamachowski
• Bolek Polívka
• Jan Budař
• Martha Issová
• Eva Holubová
• Vojtěch Dyk
• Monika Zoubková