France is home to Western Europe's biggest Jewish and Muslim populations.
The two largely live side-by-side, but they are often divided. Tensions have been rising since last March, when a man named Mohamed Merah gunned down seven people, including three children, at a Jewish school in Toulouse. Merah himself was killed in a firefight with police. Then, in a shootout in Strasbourg last October, police killed Jeremy Sidney, a terror suspect linked to an attack on a kosher market outside Paris.
Merah and Sidney are extremes but they're among an alarming number of anti-Semitic attacks across France this year. Most of the assailants have been identified as young Muslim men. So it is in France's low-income and largely Muslim communities that some religious leaders are campaigning for peace and reconciliation.