Francois Hollande has used the word "massacres" to describe the conflict in Gaza.
Interviewed after speaking at a ceremony to mark the centenary of the First World War, the French President referred to the "daily massacres" in Syria and Iraq, as well as the "massacres in Gaza - 28 days of conflict".
Mr Hollande added: "Terrorism, violence, all this can spread, transpose so we must act ... we must act and not think that others must act on our behalf."
There have been two days of quiet in Gaza. No rockets or missiles, no more destroyed houses, no more ambulance sirens screaming.
A three-year-old girl has been rescued from Gaza and brought to London for life-saving heart surgery.
A small team of NHS doctors and surgeons is travel to Gaza to set up facilities and establish how best to use specialists and equipment.