At the 2015 Labour conference, shortly after Corbyn’s victory, Labour members voted in favour of a Unite motion to only support air-strikes on Syria if they have United Nations (UN) backing. More recently in the Commons vote to authorise this bombing, in the absence of UN support, Diane Abbott, a key Corbyn ally and Labour left-winger, urged caution, saying that “if some MPs are intent on military action, surely their first step should be to pressure Cameron to obtain some kind of UN resolution?”.