It was precisely the type of attack that had long been feared: a co-ordinated and brutal act of urban warfare that brought Paris to a standstill for more than three hours on an otherwise typical Friday night. Six of the nine attackers had spent time fighting for Islamic State in Syria. Indeed, it was the third act of international terrorism perpetrated by IS in a fortnight, a campaign that started with the bombing of a Russian Metrojet flight over Sinai in Egypt, followed by a double suicide bombing in Beirut that killed 41 people – the deadliest attack in the Lebanese capital since the civil war there ended in 1990.
There are several significant operational observations to be made about what transpired in Paris. The attackers wore suicide belts in which the active ingredient was TATP, a highly unstable explosive based on acetone and hydrogen peroxide. TATP was also used in July 2005 when the London transport network was attacked. Known as the “mother of Satan” because of its volatility, it is usually manufactured at home and it is prone to accidental detonation – or, indeed, sometimes fails to detonate at all.