to be specific, it is more accurate to say the Islamic counter reformation is at war with the west
There is a group of people, under a collective leadership, who desire our destruction, and are willing to commit their lives, their fortunes, and their not-so-sacred honor to fulfill that desire. We can either surrender, or conquer. For the sake of the future of the world, we should choose to conquer.
Let us hope that Hollande means it when he describes France's response as being pitiless, because it will not be until at least January 2017 that an American president will be willing to respond in the same way.
And one more thing: Hollande is a socialist. This, in a perverse way, is a good thing. The left, both in France and here, can't call him a right-wing nutcase cowboy who doesn't understand the inherent peacefulness of Islam, because he is one of their own. Whatever he does against ISIS, he will have a free hand.