WAR ON IRAK

Independent: Bubbles of fire tore into the sky above Baghdad Robert Fisk in Baghdad

It was like a door slamming deep beneath the surface of the earth; a pulsating, minute-long roar of sound that brought President George Bush's supposed crusade against "terrorism" to Baghdad last night.

There was a thrashing of tracer on the horizon from the Baghdad air defences – the Second World War-era firepower of old Soviet anti-aircraft guns – and then a series of tremendous vibrations that had the ground shaking under our feet. Bubbles of fire tore into the sky around the Iraqi capital, dark red at the base, golden at the top.

Saddam Hussein, of course, has vowed to fight to the end but in Baghdad last night, there was a truly Valhalla quality about the violence. Within minutes, looking out across the Tigris river I could see pin-pricks of fire as bombs and cruise missiles exploded on to Iraq's military and communications centres and, no doubt, upon the innocent as well.

That this is the start of something that will change the face of the Middle East is in little doubt; that it will be successful in the long term is quite another matter.

The sheer violence of it, the howl of air raid sirens and the air-cutting fall of the missiles carried its own political message; not just to President Saddam but to the rest of the world. We are the super-power, those explosions said last night. This is how we do business. This is how we take our revenge for 11 September.