GCHQ facilities in Cyprus are expected to play a key role in collecting intelligence which will inform any military strike against Syria despite Parliament last week voting against the UK joining in with any potential attack.
The Cheltenham-based listening post has a presence on the island which is used to intercept messages from across the Middle East.
The information gathered by the island facility, which is just 100 miles off the coast of Syria, is likely to be handed over to the US military ahead of any missile strike against President Bashar al-Assad.
Whitehall sources have said that the MP vote last week only covered direct military intervention and did not cover sharing intelligence which will continue.
The US government contributes to the island post’s costs.
The news comes as Cheltenham’s Liberal Democrat MP, Martin Horwood, writes in his Echo column he “regrets” the way the Parliament vote went.
“Parliament was drawn into party political divisions over a grave issue and allowed the spectres of Tony Blair and Iraq to paralyse its response to a monstrous atrocity,” he writes.
He goes on to state that “dictators worldwide will feel slightly freer to get away with murder” as a result of the vote.
Mr Horwood also hits out at Ed Milliband writing that “the chance to damage the coalition mattered more” to the leader of the Labour Party than the issue at stake.