History of the Communist Party USA the retiring head of the party, William Z. Foster, published a book entitled "Toward Soviet America", which laid out the Communist Party's plans for revolution and the building of a new socialist society based on the model of Soviet Russia. In that same year, Earl Browder became General Secretary of the Communist Party. At first, Browder moved the party closer to Soviet interests and helped to develop its secret apparatus or underground network. He also assisted in the recruitment of espionage sources and agents for the Soviet NKVD. Browder's own younger sister Margerite was an NKVD operative in Europe until
Soviet repressions of Polish citizens (1939–1946) under "de facto" military occupation for many years to come, controlled by the Soviet Northern Group of Forces, which were stationed in Poland until 1956. Some 25,000 Polish underground fighters, including 300 top Home Army officers, were captured by NKVD units and SMERSH operational groups in the fall of 1944. They suffered mass deportations to the gulags. Between 1944 and 1946, thousands of Polish independence fighters actively opposed the new communist regime, attacking country offices of NKVD, SMERSH and the Polish communist secret service (UB). The events of the late 1940s amounted to a full-scale civil war according to some