When Europe faced great invasions. Le Figaro Histoire returns in a special report on these spectacular convulsions.

Germans, Slavs, Arabs and Vikings succeeded one another and settled in the kingdoms born from the rubble of the Roman Empire. As a third year of war begins between Russia and Ukraine, Thierry de Montbrial highlights the transformation of the international system at work through this conflict. On the reporting side, Philippe Auguste takes you in the footsteps of the enclosure with which the king endowed Paris 800 years ago.