Iran’s hidden war with the West – and what we can do to fight back

When British troops were on patrol in Iraq and Afghanistan, we faced many enemies, from jihadis to press-ganged civilians. But for me, the most terrifying ones lay buried. Bullets usually miss. Improvised explosive devices – IEDs — don’t. They are frighteningly simple. Old munitions wired together or plastic bottles packed with fertiliser and ball-bearings could destroy a vehicle and kill its passengers.

During my four years in Afghanistan I saw IEDs evolve: first came remote triggers, then pressure plates and then low-metal-content devices. Curiously, IEDs evolved in a similar way in Iraq. This should be no surprise, since the groups trying to kill British troops shared one common resource: Iranian support.

For years, Tehran has armed insurgents. Through the Quds Force, the special forces unit of the regime’s Islamic Revolutionary Guard Corps, it has killed British troops and plotted to assassinate diplomats in Washington DC. The ayatollahs have nurtured terrorists around the world.