Center for a Free Cuba
Thousands of Polish Army officers and intellectual leaders were taken into the Katyn Forest near Smolensk in the Soviet Union, shot in the back of the head or in the neck and buried in mass graves. https://cubacenter.org/cuba-brief/2024/08/24/cubabrief-observing-black-ribbon-day-in-remembrance-of-victims-of-totalitarianism-and-the-35th-anniversary-of-the-baltic-ways-nonviolent-triumph/ 11/