Bronna Góra is the name of a secluded area in present-day Belarus where mass killings of Polish Jews were carried out by Nazi Germany during World War II. The location was part of the eastern half of occupied Poland, which had been invaded by the Soviet Union in 1939 in agreement with Germany, and two years later captured by the Wehrmacht in Operation Barbarossa. It is estimated that from May 1942 until November of that year, during the most deadly phase of the Holocaust in Poland, some 50,000 Jews were murdered at Bronna Góra forest in death pits. The victims were transported there in Holocaust trains from Nazi ghettos, including from the Brześć Ghetto and the Pińsk Ghetto, and from the ghettos in the surrounding area, as well as from Reichskommissariat Ostland.