The Telegraph reports that the British Government will hold a secret, high-level meeting at the Ministry of Defence on Monday to consider the consequences of an attack on Iran. The meeting will be attended by Gen Sir Michael Walker, the chief of the defence staff, Lt Gen Andrew Ridgway, the chief of defence intelligence and Maj Gen Bill Rollo, the assistant chief of the general staff, together with officials from the Foreign Office and Downing Street.

A senior Foreign Office source said:

Monday’s meeting will set out to address the consequences for Britain in the event of an attack against Iran. The CDS [chiefs of defence staff] will want to know what the impact will be on British interests in Iraq and Afghanistan which both border Iran. The CDS will then brief the Prime Minister and the Cabinet on their conclusions in the next few days.

If Iran makes another strategic mistake, such as ignoring demands by the UN or future resolutions, then the thinking among the chiefs is that military action could be taken to bring an end to the crisis. The belief in some areas of Whitehall is that an attack is now all but inevitable.