Jan Karski's comment on the fighting spirit of Polish citizens under occupation, 1940

Most of fences, walls and buildings’ facades in Warsaw are constantly being covered with notices in paint or chalk: POLAND IS FIGHTING – POLAND WILL WIN – DEATH TO GERMANS – DON’T FORGET OŚWIĘCIM – POLAND WAS, IS AND WILL BE – BELOVED HOMELAND – etc. etc. There is a symbolic sign – PW [FP] which means Polska Walcząca [Fighting Poland] – and it is visible all over buildings, on sidewalks, German cars, German offices, German coats in coffee houses, on German suitcases on the railway stations.