Open this photo in gallery: Samuel Lejoyeux, head of the UEJF (Union of Jewish French Students) walks past pasted photos on Oct. 16, 2023 in Paris.Michel Euler/The Associated Press French Jewish groups have set up a helpline to provide support to people in the community traumatized by the latest Israel-Hamas war — from families who have lost loved ones in the Middle East to parents anxious about their children’s reaction to the conflict and Holocaust survivors. Since it was launched a few days after the deadly Oct. 7 Hamas incursion into southern Israel, dozens of people have called in every...