Wanda Wasilewska, also known by her Russian name Vanda Lvovna Vasilevskaya, was a Polish and Soviet novelist and journalist and a left-wing political activist. She was a socialist who became also a devoted communist. She fled the German attack on Warsaw in September 1939 and took up residence in Soviet-occupied Lviv and eventually in the Soviet Union. She was the founder of the Union of Polish Patriots there and played an important role in the creation of the 1st Tadeusz Kościuszko Infantry Division. The division developed into the Polish People's Army and fought on the Eastern Front during World War II. Wasilewska was a trusted consultant to Joseph Stalin and her influence was essential to the establishment of the Polish Committee of National Liberation in July 1944 and to the formation of the Polish People's Republic.