Classical Mechanic
Full Member
You do need one for the wars to end, though.
Edit: Sorry, misunderstood the post. You were talking about Corbyns chance of proposing it on the international stage, at first I thought you meant Russia/Ukraine.
If he really wants to be a thought leader on the conflict then he neads to delineate a path towards a peaceful settlement rather than just saying there should be one, which is what the vast majority of people think anyway.