'It may be just an idle threat ... but I don't think we can ever just rely on that,' said former U.S. defence secretary William Cohen on Russian President Vladimir Putin's order to put Russia's nuclear forces on high alert.
'It may be just an idle threat ... but I don't think we can ever just rely on that,' said former U.S. defence secretary William Cohen on Russian President Vladimir Putin's order to put Russia's nuclear forces on high alert.