Russia has abandoned a long-held nuclear "freeze" after Donald Trump deployed submarines near Vladimir Putin's coasts. Moscow has said it no longer considers itself bound by a self-imposed ban on the deployment of missiles - and is poised to bring short- and intermediate-range nuclear weapons into action.

Donald Trump has been accused of nuclear posturing, after claiming that he’d ordered two US submarines to move closer to Russia. The announcement followed an escalating social media spat with former Russian president Dmitry Medvedev,