
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.

The Brześć Ghetto or the Ghetto in Brest on the Bug, also: Brześć nad Bugiem Ghetto, and Brest-Litovsk Ghetto was a Nazi ghetto created in occupied Western Belarus in December 1941, six months after the German troops had invaded the Soviet Union in June 1941. Less than a year after the creation of the ghetto, around October 15–18, 1942, most of approximately 20,000 Jewish inhabitants of Brest (Brześć) were murdered; over 5,000 were executed locally at the Brest Fortress on the orders of Karl Eberhard Schöngarth; the rest in the secluded forest of the Bronna Góra extermination site, sent there aboard Holocaust trains under the guise of 'resettlement'.

The defense of Brest Fortress was the first major battle of Operation Barbarossa, the Axis invasion of the Soviet Union launched on 22 June 1941, lasting from 22 to 29 June. The fortress was attacked without a warning; the German Heer (army) expected to take Brest on the first day using only infantry and artillery. The defense of the fortress by the Red Army lasted days; German ground forces took the fortress only after two bombardments by the Luftwaffe. Many defenders were killed or captured.

Maly Trostenets is a village near Minsk in Belarus, formerly the Byelorussian Soviet Socialist Republic. During Nazi Germany's occupation of the area during World War II, the village became the location of a Nazi extermination site.

The so-called Molotov Line was a system of border fortified regions built by the Soviet Union in the years 1940–1941 along its new western borders. These borders were the result of the Occupation of the Baltic States, Eastern Poland and Bessarabia in 1940.

The Panther–Wotan line was a defensive line partially built by the German Wehrmacht in 1943 on the Eastern Front. The first part of the name refers to the short northern section between Lake Peipus and the Baltic Sea at Narva. It stretched all the way south towards the Black Sea along the Dnieper.
The Pińsk Ghetto was a Nazi ghetto created by Nazi Germany for the confinement of Jews living in the city of Pińsk, Western Belarus. Pińsk, located in eastern Poland, was occupied by the Red Army in 1939 and incorporated into the Byelorussian SSR. The city was captured by the Wehrmacht in Operation Barbarossa in July 1941; it was incorporated into the German Reichskommissariat Ukraine in autumn of 1941.

The Stalin Line was a line of fortifications along the western border of the Soviet Union. Work began on the system in the 1920s to protect the USSR against attacks from the West. The line was made up of concrete bunkers and gun emplacements, somewhat similar to, but less elaborate than the Maginot Line. It was not a continuous line of defense along the entire border, but rather a network of fortified districts, meant to channel potential invaders along certain corridors.