Quite a good turn-out, Lindsey German claimed Whitehall was filled from end to end, not sure that was quite so but probably more than the last one. The most noticeable feature was the anger at Labour MPs trying to use the war to undermine Corbyn despite his overwhelming mandate from the party – my favourite banner reads ‘If your vote of conscience is a vote for war, then a claim to conscience you have no more.’ (Though I was also rather charmed by the slogan of the delegation from the English Collective of Prostitutes with a banner reading ‘Whores Against Wars’).

A succession of speakers ridiculed the arguments in favour of bombing in withering terms, pointing out the incoherence of Cameron’s case, poring scorn on the claim that there are 70,000 moderate fighters, and pointing out that there are multiple wars going on in Syria and we do not seem to be clear which one we are supporting. The role of Turkey (importing oil from ISIL sources) and Saudi Arabia (still providing some finance, and the source of the ideology through the export of extreme versions of wahabi Islam) came in for particular censure. The most effective speaker was Tariq Ali, though he didn’t do Corbyn any favours by saying he is the most left wing leader Labour has ever had – I dread to think what the press will do with that.