Britain must not shrink back from a “chaotic world”, Sir Keir Starmer has said as he underlined his commitment to internationalism.

In his annual Guildhall speech on foreign policy, the Prime Minister accused opposition politicians of offering a “corrosive, inward-looking attitude” on international affairs.

Taking aim at those who advocate leaving the European Convention on Human Rights or Nato , he said they offered “grievance rather than hope” and “a declinist vision of a lesser Britain”.

Sir Keir said: “Moreover, it is a fatal misreading of the moment, ducking the fundamental challenge posed by a chaotic world – a world which is more dangerous and unstable than at any point for a generation, where international events reach directly into our lives, whether we like it or not.”

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