Map of the Katyn massacres (in the widest sense) during 1940 spring.
Katyn_massacres_1940_map-fr.svg
Katyn_massacres_1940_map-fr.svg: *2010_Polish_Air_Force_Tu-154_crash_map-pl.svg: Uwe Dedering; converted to Polish by Mareklug
derivative work: Sémhur (talk)
derivative work: NNW (talk)