Yahad - In Unum (YIU) (“Together in One”) is a French organization founded to locate the sites of mass graves of Jewish victims of the Nazi mobile killing units, especially the Einsatzgruppen, in Ukraine, Belarus, Russia, Poland, Lithuania, Latvia, Romania and Moldova.
YIU is led by Father Patrick Desbois, a Catholic priest whose grandfather was a French soldier deported to the Nazi prison camp Rava-Ruska, located in a Ukrainian town that borders Poland.
[9] In less than two years, from June 1941 until the spring of 1943, an estimated 1.25 million Jews were massacred in the Soviet Union by Nazi mobile killing units, or Einsatzgruppen.
[10][11] YIU seeks to find evidence of the massacres on the Eastern front and locate the mass graves of Jews killed by the Einsatzgruppen.
[12] After the research is complete, an 11-person team, usually led by Patrick Desbois, travels to Belarus and Ukraine to collect testimonial and forensic evidence of the murders.
The team includes a photographer, ballistics expert, translators, drivers, daily report recorders, a witness interviewer and camera operator.
[15] The organization is also expanding InEvidence, an interactive map on its website, on which users can see the extent to which the Nazis attempted to wipe out the Jewish population in remote villages.
It enables users to choose a specific country and location and to read information about the testimonies and/or watch a video regarding the town's mass murder.