Labour leader Jeremy Corbyn has written to his MPs saying he cannot back UK air strikes in Syria - prompting a warning of shadow cabinet resignations.
Mr Corbyn rejected David Cameron's claim that targeting so-called Islamic State there would make Britain safer.
His intervention - which puts him at odds with a number of his MPs - was criticised by a shadow cabinet member.
The frontbencher said there would be resignations if Mr Corbyn ordered the shadow cabinet to back his stance.
Labour is divided on whether to support Mr Cameron's call for air strikes, with about half of the shadow cabinet believed to back intervention.
http://www.bbc.co.uk/news/uk-politics-34939109
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This could finish him off.