Murder operations of the Reserve Police Battalion 101 in occupied Poland Location Date Operation type and participants Jewish victims Józefów July 1942 Mass shooting / entire battalion 1,500 Łomazy August 1942 Mass shooting / 2nd Company, Hiwis 1,700 Parczew[56] August 1942 Extermination, death trains / 1st & 2nd Company, Hiwis 5,000 Międzyrzec Podlaski Ghetto[57] August 1942 Extermination / 1st Co., 3rd Pl. 2nd Co., 1st Pl. 3rd Co., Hiwis 12,000 Radzyń October 1942 Extermination, death trains /1st Company, Hiwis 2,000 Parczew October 1942 Mass shooting / 1st & 2nd Company, Hiwis 5,000 Biała Podlaska & its county October & November 1942 Międzyrzec Ghetto extermination, death trains 10,800 Komarówka October & November 1942 Międzyrzec Ghetto 600 Wohyń October & November 1942 Międzyrzec Ghetto 800 Czemierniki October & November 1942 Międzyrzec Ghetto 1,000 Radzyń October & November 1942 Extermination, death trains 2,000 Międzyrzec Ghetto October & November 1942 Death camps 15,200 Międzyrzec Ghetto[58] May 1943 Death camps; Majdanek, Treblinka 3,000 Aktion Erntefest 3 November 1943 Two days of mass shooting / entire battalion 43,000 Total[50] July 1942 – November 1943 Battalion 101 in occupied Poland (83,000)