Armed troops patrol below Eiffel Tower as the A trickle of visitors is braving the icy Paris winter.
France has deployed more than 700 soldiers across the capital as fears grow over the potential for reprisals following the military intervention in Mali.
An array of Islamic jihadi websites are calling for attacks on France, says Jean-Charles Brisard, a French terrorism expert and former chief investigator for the 9/11 families.
“They are calling for retaliations in Africa, because they can carry them out in Africa - their own retaliation by these groups - but for France they’re calling for the emergence of new ‘Mohammed Merahs’ - that means they essentially are relying on home-grown terrorism," said Brisard.
That has a deep resonance in France, just 10 months after three soldiers and four Jewish citizens were killed in a series of attacks in the southern city of Toulouse. The gunman, French-born Mohammed Merah, said he was partly motivated by the presence of French soldiers in Afghanistan.