US and UK marines practise desert warfare in the Mojave desert
Black Alligator exercise unites American, British and Dutch troops and underlines readiness to expanding the campaign against Islamic State
It was a victory foretold and started soon after dawn, just as the sun began to bake the desert. Two American F-16 jets roared out of a clear blue sky and dropped heavy payloads on enemy bunkers in the distant foothills.
British artillery unleashed a barrage which boomed across the plain, sending grey plumes curling over the targets. Mortars joined in, peppering explosions across the ridge.
Four M1 Abrams tanks ploughed through scrub towards the foothills. About 800 metres out they stopped, lined up and fired volleys of heavy explosive shells, gouging craters in the condemned terrain.
The tanks opened up with machine guns, a sign for Humvees with their own mounted machine guns to line up alongside and join the cacophony, spraying thousands of bullet casings over the desert floor.
Armoured transports called Vikings raced to one flank and offloaded Royal Marine commandos. Bristling with body armour and guns, they stormed through what was left of the smoking ruins.
"A covert approach, then overwhelming force. Consecutive attacks. Nobody gets out," said Lieutenant Colonel Dan Cheesman, the commanding officer of 45 Commando Group, which led the attack.