The Defence Secretary Philip Hammond has said that today's spending plan for military equipment over the next 10 years is "all about stability and being able to plan forward."
He aims to avoid repeating previous cases where money is wasted, because equipment is ordered which then can't be afforded, and so has to be delayed, driving costs up.
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Donald Trump's press secretary will hold his first full briefing today after a weekend in which the administration clashed with the media.
All weekend it felt as though the new administration had a self-destruct button and was desperately searching for it.
Areas of dense freezing fog across the south-east could cause flight delays until at least 10.30am, according to forecasts.