Not only were the ethnic Serbs that were in the VRS responsible for ethnic cleansing campaign against the Bosnian Muslims, but so were the ethnic Croats that were in the Croatian Defence Council, or the HVO. The HVO established several concentration camps, notably the Heliodrom-Dretelj camp, which housed not only captured POWs, but also pregnant women, and sometimes children. The Lašva Valley ethnic cleansing campaign was also committed by the HVO, alongside local Croats supporting them within the area.