Earlier this month, the US was been given permission by the UK to use the base - as well as RAF Fairford in Gloucestershire - for defensive operations to prevent Iran firing missiles that put British interests or lives at risk.
On Friday, the UK agreed to allow the US to use British bases to launch strikes on Iranian sites targeting the Strait of Hormuz.
Diego Garcia is strictly out of bounds to most civilians and is about 1,000 miles (1,609km) from the nearest landmass.
The remote island has been at the centre of a long-running territorial dispute between the UK and Mauritius. Under a deal between the nations - which was announced last May - the UK will lease back Diego Garcia for a period of 99 years at an average cost of £101m a year.
- BBC









