The UK's Parliament will reportedly be recalled on Friday to discuss Britain's role in military action against Islamic State militants.
A formal request is expected from Iraq's Prime Minister for the UK to join in air strikes on IS positions.
This as the US Pentagon says the fight against the Islamic State might take 'years'.
President Barack Obama has thanked Arab states for their support in air strikes inside Syria.
Lord David Hannay, ambassador to the UN at the time of the first Gulf War, says this is not the start of co-operation with the Syrian government of Bashar al Assad.
IN: "I don't...
OUT: ...human rights."
DUR: 31 seconds
ALT:
Lord David Hannay, ambassador to the UN at the time of the first Gulf War, says the support of Arab states is crucial.
IN: "That shows...
OUT: ...co-religionists."
DUR: 30 seconds
ALT:
Lord David Hannay, ambassador to the UN at the time of the first Gulf War, says this military operation must be very different from the 2003 invasion of Iraq.
IN: "There is...
OUT: ...like that."
DUR: 17 seconds