Among the leaders were:
British Prime Minister: David Cameron
Malian President: Ibrahim Boubacar Keita
European Commission President: Jean-Claude Juncker
German Chancellor: Angela Merkel
Italy's Prime Minister: Matteo Renzi
Turkish Prime Minster: Ahmet Davutoglu
Israeli Prime Minister: Benjamin Netanyahu
Palestinian President: Mahmoud Abbasand and many others.
The march began at the Place de la Republique and finished at the Place de la Nation. Solidarity marches were also held in world cities including London, Madrid, Cairo, Sydney and Tokyo.
More pics after the cut...