There is a very (very) long history of terrorist attacks in France from a wide variety of groups.<p><a href="https:&#x2F;&#x2F;fr.wikipedia.org&#x2F;wiki&#x2F;Terrorisme_en_France" rel="nofollow">https:&#x2F;&#x2F;fr.wikipedia.org&#x2F;wiki&#x2F;Terrorisme_en_France</a>
(link to the French one, the English version is shorter)<p>Only looking at post-WWII, you have far-right groups, far-left groups, Corsican regionalists, Basque regionalists, various independentists (Breton, New Caledony, Caribbean, etc.), extension of the Algerian civil war of the 90s, etc. Those account for hundreds of attacks, with a various amount of deads. Only recently have Islamist attacks begun. The most lethal single attack until today in France was in fact from a far-right group in the 60s.