Photo: Military History Institute
On January 16, 1945, the Nazis cracked down on Operation Barium, one of the most successful resistance networks in the Protectorate during World War II.
On the night of 3 to 4 April 1944, three paratroopers from the Barium group were parachuted near Vysoká nad Labem within a resistance operation organized by the Czechoslovak government in exile.
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