DAVID Cameron will today decide on whether or not to bow to pressure from MPs to recall Westminster as their suspicions grow that he is poised to sanction military attacks against Syria.

The Prime Minister, who has cut short his family holiday in Cornwall, has been discussing possible options, including military ones such limited air strikes, with fellow world leaders, and will tomorrow chair Whitehall's National Security Council(NSC). No 10 made clear he reserved the right to take "swift action" if need be.

Nick Clegg has cancelled a trip to Afghanistan to remain in London to attend the NSC. A spokesman for the Deputy Prime Minister said he supported the need for a "strong response" from the international community to the "abhorrent" use of chemical weapons.

MPs from across the parties are demanding a quick recall of the Commons; they are not due to return from the summer recess until Monday. A parliamentary motion is being circulated around backbenchers, demanding a recall and an assurance no action will be taken against the Assad regime before a full Commons debate.

If parliament is recalled, some MPs will be pressing for a swift vote on military action, a vote the Coalition would not be guaranteed to win.

Tory backbencher Andrew Bridgen, who earlier this year sent a letter signed by more than 80 of his Conservative colleagues demanding a vote on any escalation of Britain's involvement in Syria, said: "We need an immediate recall of Parliament to debate any further involvement in this crisis. It's a complicated conflict with potentially worldwide ramifications."

The Leicestershire MP added: "If the Prime Minister or the Foreign Secretary come to the Despatch Box, they need to convince the House of the need for actions they are considering. That's surely how a democracy works."

Angus Robertson, the SNP's Foreign Affairs spokesman, agreed, saying: "The UK Parliament must be updated on developments and consulted on a potential international military intervention."

He pointed out how the UK Government had pledged to seek MPs' approval to arm the rebels, "so it would be unthinkable to not consult Parliament on the prospect of military intervention".

Labour's Thomas Docherty, MP for Dunfermline and West Fife, insisted no military action should be undertaken without Parliament first having had its say.

"There is no reason why Parliament could not talk about the principle of military action, whether that be air strikes or missile strikes or even, in the worst-case scenario, putting British combat troops on the ground.

"It would be absolutely unforgivable if the Government did not recall Parliament if it was considering any of those three options," he added.

Tory MP Sarah Wollaston, echoing calls for MPs to have their say, noted: "I sense we are on a headlong rush into escalating this conflict and Parliament can act as a natural brake to that."

William Hague, the Foreign Secretary, said he was "very conscious" of the need to consult the UK Parliament but added that it would "depend on the timing and nature of what we propose to do".

Meantime, Nigel Farage, the UK Independence Party leader, came out strongly against any British intervention, saying: "We must not engage in military attacks or send British troops to yet another foreign conflict on the whim of William Hague."

He added: "It is not for us to act as world policemen, particularly when there is still the question of who the rebels actually are. We've already seen links to extremists in their ranks.

"We cannot risk training soldiers and providing arms when they may be used against British troops and even civilians in the future."