Russia-Ukraine crisis: War can take 'many forms, many battlefields'

As Russia announces a partial pullout, they are denying any responsibility for the unprecedented cyberattack targeting Ukraine's defense ministry. Cyrille Bret, International Relations Specialist at the Jacques Delors Institute, joins France 24 and warns "the crisis is not over, far from it. And many new actions are to be taken now by the Europeans to make sure that their security at home, on the continent, is in their hands and not in the hands of the US or the hands of Russia."