Britain's military is capable of taking part in a swift campaign against Libya, but prolonged fighting could stretch its armed forces and raise pressure on Prime Minister David Cameron to rethink deep defence cuts.

Britain's military is capable of taking part in a swift campaign against Libya, but prolonged fighting could stretch its armed forces and raise pressure on Prime Minister David Cameron to rethink deep defence cuts.

Despite its role in Afghanistan and severe financial pressures, senior British ministers and military chiefs say they can comfortably help to enforce the no-fly zone over Libya.

However, if the operation grows or drags on for months, it could strain areas such as the support crews that arm and refuel planes and perform airborne reconnaissance.

Britain's involvement in the first stage of the strikes against Libya appeared to be relatively limited, with planes flying from one UK airbase and one submarine firing Tomahawk missiles, analysts noted.