Gordon Brown and John Major back Nuremberg-style tribunal for Putin

Former PMs join campaign calling for trial of Russian president and those around him over invasion of Ukraine

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The former UK prime ministers Gordon Brown and Sir John Major are among those calling for the creation of a new international tribunal to investigate Vladimir Putin and those who helped plan his invasion of Ukraine.

They have joined a campaign - along with leading names from the worlds of law, academia and politics - aiming to put the Russian president and others on trial.