Philip Hammond
, the foreign secretary, has bluntly rejected calls for Britain to enlist
Syria
's president,
Bashar al-Assad
, as an ally in the fight against
Islamic State (Isis)
extremists.
In an interview on the BBC's World at One, he said the idea, floated by one of his Conservative predecessors as foreign secretary, Sir Malcolm Rifkind, had no attraction to the government at all.
"We may very well find that we are fighting, on some occasions, the same people that [Assad] is but that doesn't make us his ally," Hammond said. "It would not be practical, sensible or helpful to even think about going down that route."
Rifkind had told the programme that it was important for the west to be realistic. Even though the US and the UK came close to launching air strikes against the Assad regime last summer, there could be a case for collaborating with Assad in some way to ensure the defeat of Isis, Rifkind suggested.
"I think we have to be harshly realistic, which means we don't pretend we are chums of the Syrian regime – they are a ghastly regime, they are a horrid regime – but just as during the second world war Churchill and Roosevelt swallowed hard and dealt with Stalin, with the Soviet Union, not because they had any naivety about what Stalin represented but because that was necessary in order to defeat Hitler, and history judged them right in coming to that difficult but necessary judgment," Rifkind said.
Richard Dannatt, the former head of the army and at one time a defence adviser to the Conservatives, made the same argument
in an interview on the Today programme on Friday morning.
But Hammond argued that Rifkind and Lord Dannatt were both wrong.
"I do not think that engaging in a dialogue with the Assad regime would advance the cause that we are all advocating here," Hammond said.
"General Dannatt I heard talking about the adage that my enemy's enemy is my friend. I have said very often that one of the first things you learn in the Middle East is that my enemy's enemy is not necessarily my friend.
"We may very well find that we are aligned against a common enemy. But that does not make us able to trust them, it does not make us able to work with them and it would poison what we are trying to achieve in separating moderate Sunni opinion from the poisonous ideology of Isil [Islamic State] if we were to align ourselves with President Assad."
Dannatt argued that one reason for talking to Assad would be to ensure that, if the US or the UK wanted to launch air strikes against Isis bases in Syria, they were not targeted by Syrian air defences.
But Hammond dismissed this idea. "I don't know where the idea comes from that Assad has to assent to a
military
intervention in his country. There's a civil war raging," he said.