Britain and Brunei have signed a defence agreement that will ensure British troops remain stationed in the Southeast Asian state for another five years.
The Prime Minister and the Sultan of Brunei agreed to renew the long-standing arrangement during a meeting at Chequers.
The UK has had a contingent of Gurkhas in Brunei since 1962, and there are currently around 2,000 personnel based in the country.
Mr Cameron said the agreement gives Britain a permanent presence in South Asia and provides opportunities for extreme environment training.
Victoria Graham spoke to Steve Britton, who was the British Forces Broadcasting Service's station manager in Brunei for ten years, and asked him what role the British troops play there.
Forces TV reporter Kaija Larke, meanwhile, has taken a look at the history of the garrison in the country and why Brunei is so important to the UK.