Kotwica

The Kotwica (Polish for "Anchor") was a World War II emblem of the Polish Secret State and Armia Krajowa (Home Army, or AK). It was created in 1942 by members of the AK Wawer "Small Sabotage" unit as an easily usable emblem for the Polish struggle to regain independence. The initial meaning of the initials "PW" was "Pomścimy Wawer" ("We will avenge Wawer"). The Wawer massacre was considered to be one of the first large scale massacres of Polish civilians by Nazi Germany in occupied Poland. At first, Polish scouts from sabotage groups painted the whole phrase upon walls. However, this was soon shortened to two letters, P and W, due to time constraints.