Kate McCann, our senior political correspondent, has this from inside the House of Commons. As Hilary Benn took his seat on the Labour bench following a barnstorming speech in support of air strikes the chamber broke with convention and erupted with applause Leader Jeremy Corbyn was forced to move over quickly as Mr Benn sat down, very nearly landing on his knee. The two men said nothing to each other. Mr Corbyn turned up three minutes late for his shadow foreign secretary's closing speech. MPs are banned from clapping but every corner rang with the noise of members putting their hands together, cheering and waving their order papers in support of Labour's shadow foreign secretary. Conservative welfare secretary Iain Duncan Smith grabbed a document from a bench to wave in support. The surprise reaction saw Labour leader Jeremy Corbyn sat stony faced and silent as his own MPs stood up to support Benn, whose opinion he is directly opposed to. And while front benchers Diane Abbott and Tom Watson sat quietly, looking uncomfortable, their colleagues in the top team Chris Bryant and Heidi Alexander both clapped in support from the front bench. The division at the heart of the Labour Party, laid clear for all to see. As MPs filed out of the chamber to vote on the amendment, which was defeated, Andy Burnham was the first Labour MP to shake Hilary Benn's hand. Despite the two men disagreeing on whether the UK should extend air strikes to Syria or not, the shadow Home Secretary patted Mr Benn warmly on the back. His congratulations was in stark contrast to Mr Corbyn, who filed quickly out of the chamber to vote followed closely by Diane Abbott, his close ally. The Labour leader looked thunderous as a number of his MPs patted Mr Benn on the back for his barnstorming speech. Only a few filed past him without a word. As members returned from the voting lobbies a number of conservatives crossed the floor - an unusual move in itself - to offer their regards to the shadow foreign secretary. Anne Main, Alan Duncan and David Davis - who opposes air strikes - all offered a pat on the shoulder. DUP MPs also took turns to shake his hand as a steady stream of members shuffled past Mr Benn to take their seats. John McDonnell, who took his place on the front bench with a face set with a look of bewildered disappointment, failed to speak to his colleague. As MPs filed out of the chamber for the second time to vote on the main motion, following the defeat of the amendment, Jeremy Corbyn was quick to snag a prime spot on the front bench, calling to his friend Mr McDonnell to take the spare seat next to him with Mr Benn nowhere in sight.