Even bearing in mind that my friends and associates might contain more people of an anti-war persuasion than average, I have been surprised at the number of them who have told me in the past couple of weeks that they have registered as a Labour supporter in order to vote for Jeremy Corbyn as leader, and that his unwavering and principled stand on Iraq has been a clincher.
If, as many are predicting, the Labour election is now a "done deal" it is now pertinent to ask to how what one might loosely call "the anti-war lobby" consisting of SNP, Greens, Lib-Dems, Plaid Cymru, and a Corbyn-led Labour party can best operate to influence parliamentary and national debate on some of the key issues, including defence and foreign policy.
It is parties other than Labour that have most consistently held out before the public an alternative to the "Washington consensus" these past two decades. The "conversion" of the wider parliamentary Labour Party - if it happens - will still be viewed with suspicion by many as tactical and opportunistic. How Labour relates to other parties that have been torch bearers for the policies it abandoned under Blair will be a crucial test in the eyes of many.