After a Danish movie director at a seminar on “Art, Blasphemy and Freedom of Expression” and a Danish Jew guarding a synagogue were shot dead in Copenhagen, Helle Thorning-Schmidt, the prime minister of Denmark, uttered a familiar trope:

“We are not in the middle of a battle between Islam and the West. It’s not a battle between Muslims and non-Muslims. It’s a battle between values based on the freedom of the individual and a dark ideology.”

This statement — with its echoes of President Obama’s vague references to “violent extremists” uncoupled from the fundamentalist Islam to which said throat-cutting extremists pledge allegiance — scarcely stands up to scrutiny. It is empty talk.

Across a wide swath of territory, in Iraq, in Syria, in Afghanistan, in Pakistan, in Yemen, the West has been or is at war, or near-war, with the Muslim world, in a failed bid to eradicate a metastasizing Islamist movement of murderous hatred toward Western civilization.

To call this movement, whose most potent recent manifestation is the Islamic State, a “dark ideology” is like calling Nazism a reaction to German humiliation in World War I: true but wholly inadequate. There is little point in Western politicians rehearsing lines about there being no battle between Islam and the West, when in all the above-mentioned countries tens of millions of Muslims, with much carnage as evidence, believe the contrary.