Former EU negotiator Lord David Frost has switched from lead Brexit negotiator to his role as national Security Adviser to prepare the government’s Integrated Review on security, foreign policy and defence – to be launched a few weeks from now. It will be the major statement of where ‘Global Britain’ stands in the world post Brexit, according to Lord Mark Sedwill, the former NSA and Cabinet Secretary.

Lord Sedwill is helping in the preparations for Britain’s chairmanship of the G-7 summit at Carbis Bay in Cornwall this June. Both the Integrated Review , the IR, and the summit will chart Britain’s global strategy now it has left the EU. “Boris Johnson wants the Integrated Review to be more than just a defence review,” Lord Sedwill says.