Planning for WW3 or other worst-case scenarios could be stepped up after the head of the army called on the UK's political leaders to start a 'frank conversation' with the public about preparing for war as tensions between Russia and the West continue to escalate. General Sir Roly Walker this week told Sky News that 'every' citizen will be 'asked to make sacrifices' and play their part in the defence of the country.Medvedev, leader of the main pro-Putin political party United Russia, and deputy head of the powerful Kremlin security council insisted the West should take seriously Moscow’s regular threats...