EU says Putin's ominous threat to those who hinder him marks 'critical moment'

FILE PHOTO: EU flags flutter in front of the European Commission headquarters in Brussels, Belgium October 2, 2019. REUTERS/Yves Herman/File Photo

MADRID (Reuters) - Russia's invasion of Ukraine and ominous threat against those who get in its way mark a critical moment, the top EU diplomat said on Thursday, shortly after promising "the harshest package of sanctions we have ever implemented".

Russian forces invaded Ukraine by land, sea and air in the biggest attack by one state against another in Europe since World War Two.