By focusing on the acts of violence after 9/11 we ignored the ideology that justifies, promotes, celebrates, and encourages violence.
There is still much fighting in Afghanistan, but jihad no longer has the bases of Mullah Omar to launch attacks on Western skyscrapers. Osama bin Laden has been killed. The Western coalition is closing the circle around Raqqa, the de facto Syrian capital of the Islamic state, and will soon (hopefully) strike the Caliph. And in Europe, anti-terrorism continues to dismantle new jihadist cells.
The jihad’s human “booty” is less good: 6,928 American soldiers have been killed and 170,000 people assassinated in 73,000 terrorist attacks in the world. Last year, more than 25,000 people were assassinated in 11,000 terrorist attacks in 104 countries. Compare these figures with the 7 thousand deaths in less than 2,000 attacks in 2001 (with almost half of those dead in a single day) and it is clear that the threat of Islamic terrorism has grown despite many Western efforts.