Nevidni bataljon (The Invisible Battalion) is a 1967 Slovene film directed by Jane Kavčič.
A group of German soldiers begins to feel safe from partisan attacks while staying in a small town, far from the mountains where the fighting is taking place.
Local lads, unhappy with their elders' passive stance, organise themselves into a group and take action.
They write anti-German slogans all over the town and the Germans become more alert.
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