Stalag IV-C was a German World War II prisoner-of-war camp located in Bystřice (now part of the town of Dubí) in German-occupied Czechoslovakia (now the Czech Republic) in the Ore Mountains region.

[1] The main camp was housed in a former porcelain factory.

The largest detachment, of 8,000 men, was at Brüx (now Most)[2] working on the construction of the Sudetenländische Treibstoffwerke ("Sudetenland Fuel Works"), part of the state-owned industrial conglomerate Reichswerke Hermann Göring.

This plant was designed to process oil from coal, and as part of the Allied campaign to attack German oil production it was bombed several times between July 1944 and April 1945.

In the second raid on 21 July 1944 six British POWs were killed and 21 were injured.