The Kotwica ([kɔtˈfit͡sa]; Polish for "Anchor") was a World War II emblem of the Polish Underground State and Armia Krajowa (Home Army, or AK). It was created in 1942 by members of the AK Wawer Minor 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 shall avenge Wawer"). This was a reference to the Wawer massacre (26–27 December 1939), which was considered to be one of the first large scale massacres of Polish civilians by German troops in occupied Poland.
At first, Polish scouts from sabotage groups painted the whole phrase upon walls. However, it was soon abbreviated to the letters PW, which over time came to symbolise the phrase Polska Walcząca ("Fighting Poland"). Early in 1942, the AK organised a contest to design an emblem to represent the resistance movement, and the winning design (pictured) by Anna Smoleńska, a member of the Gray Ranks who herself participated in minor sabotage operations, combined the letters P and W into the Kotwica. 
History of the emblemEdit
On 27 June 1942 it was used to initiate a new form of minor sabotage. In order to commemorate the patron saint's day of the Polish President Władysław Raczkiewicz and the Commander-in-Chief Władysław Sikorski, members of the Armia Krajowa in Warsaw stamped several hundred copies of the German-backed propaganda newspaper, Nowy Kurier Warszawski (The New Warsaw Courier), with the Kotwica. This became an annual event during the German occupation. In its first year only 500 copies were stamped with the emblem but this number grew to 7,000 the following year.
On 18 February 1943, the Armia Krajowa's commander, General Stefan Rowecki, issued an order specifying that all sabotage, partisan and terrorist actions be signed with the Kotwica. On 25 February, the official organ of the Armia Krajowa, Biuletyn Informacyjny, called the Kotwica "the sign of the underground Polish Army". The emblem gained enormous popularity and became recognised throughout occupied Poland. During the later stages of the war, most of the political and military organisations in Poland (even those not related to the Armia Krajowa) adopted it as their symbol. It was painted on the walls of Polish cities, stamped on German banknotes and post stamps, printed on the headers of underground newspapers and books, and it also became one of the symbols of the Warsaw Uprising (the letters P and W are also abbreviations of Wojsko Polskie ("Polish Army") and Powstanie Warszawskie ("Warsaw Uprising").
Prohibition of the emblem's use was relaxed in Poland in the later years of communist rule and in 1976 it became one of the symbols of Ruch Obrony Praw Człowieka i Obywatela (ROPCiO), an anti-communist organisation defending human rights in Poland. It was also adopted by other anti-communist political organisations, ranging from the rightist Confederation of Independent Poland (KPN) of Leszek Moczulski to Solidarność Walcząca (Fighting Solidarity), an organisation formed in response to the de-legalisation of the independent trade union Solidarity and government repression of the opposition after martial law was declared in Poland in 1981.
The Kotwica painted on a German bunker near Bonifraterska Street during the Warsaw Uprising.
The Kotwica on the emblem of the Zośka battalion of the Armia Krajowa.
The Kotwica on the emblem of the Miotła battalion of the Armia Krajowa.
The Kotwica on the Armia Krajowa Cross.
The Kotwica incorporated into the Fighting Solidarity logo.
The Kotwica on the observation tower of the Warsaw Uprising Museum.
The Kotwica on the Armia Krajowa monument in Bielany.
- Andrzej Gładkowski (2008). "Znak Polski Walczącej". Andrzej Gładkowski, Wydawnictwo fundacji „Warszawa walczy 1939 – 1945”. Związek Powstańców Warszawskich. Archived from the original on 15 August 2013. Retrieved 7 July 2013.
- Tomasz Szarota (2013). "Historia Kotwicy Polski Walczącej". with historical photographs. Retrieved 7 July 2013.
- Adam Cyra (2012). "Anna Smoleńska, twórczyni znaku Polski Walczącej". Auschwitz Memento. Retrieved 7 July 2013.