French President Francois Hollande (R) welcomes Germany's Chancellor Angela Merkel as she arrives at the Elysee Palace before the solidarity march (Rassemblement Republicain) in the streets of Paris January 11, 2015. French citizens will be joined by dozens of foreign leaders, among them Arab and Muslim representatives, in a march on Sunday in an unprecedented tribute to this week's victims following the shootings by gunmen at the offices of the satirical weekly newspaper Charlie Hebdo, the killing of a police woman in Montrouge, and the hostage taking at a kosher supermarket at the Porte de Vincennes.     REUTERS/Pascal Rossignol (FRANCE  - Tags: CRIME LAW POLITICS CIVIL UNREST SOCIETY)   - RTR4KWCH