Will there be gas shortages? We answer the vital questions on the crisis in Ukraine
Ukraine is not a member of Nato, so the alliance's members - including the UK - will not play a direct role in fighting.But Russian aggression in eastern Europe is likely to increase anxiety among Nato's members.
In a message on Tuesday she said: 'I strongly advise British nationals to leave the country while commercial travel is available.' The Government has signalled it intends to rely on sanctions rather than military might to enforce its message to Vladimir Putin. Stock markets around the world tumbled after Putin's troops announcement, but showed signs of recovery during the day.The Centre for Economics and Business Research think tank warned that the Ukraine crisis could fuel inflation and slow down growth in the main Western economies.
Defence Secretary Ben Wallace said the UK will launch retaliatory cyber attacks on Russia if it targets Britain's networksDefence Secretary Ben Wallace has warned that a Russian invasion of Ukraine could lead to millions fleeing the country.Ukrainian defence minister Oleksiy Reznikov told the BBC: 'It will be a disaster not only for Ukraine, it will be a disaster for Europe.'
He said: 'The EU needs to avoid another migration crisis. It is highly likely that the whole of the EU will be affected, the UK too, but France, Poland, Hungary and Germany are most likely to feel the biggest effect.'Britain faces a wave of Russian cyber-attacks over its defence of Ukraine, senior military advisers have warned.