Hollande, who was in Moscow on way back from trip to Kazakhstan, is most senior Western leader to visit Russia since it annexed Crimea.
Philippe de Villiers says Russian president Vladimir Putin is only leader fighting for 'non-globalised world that nourishes deep roots'.
Right-wing Philippe de Villiers agrees deal which legal experts say is in open defiance of EU sanctions against Russia over Ukraine crisis.
France will also offer to send four fighter jets to Baltic states to boost NATO air patrols over the region should the military alliance request them.
Foreign minister Laurent Fabius says £1bn contract for two high-tech Mistral warships could be blocked if situation escalates.
US state secretary John Kerry and Russian counterpart Sergei Lavrov held their first face-to-face talks, which are to continue over coming days.