Celebration of the National Day of Remembrance of the Cursed Soldiers

More information: https://www-ok-sejny-pl.translate.goog/obchody-narodowego-dnia-pamieci-zolnierzy-wykletych/?_x_tr_sl=pl&_x_tr_tl=en&_x_tr_hl=pl&_x_tr_pto=wapp