EU leaders were discussing options for greater defence cooperation on the second day of a summit in Versailles on Friday, just over two weeks after Russia brought war to the European continent by invading Ukraine. “I think everybody has agreed that things have changed since February 24,” Estonian Prime Minister Kaja Kallas said at the start of the talks, referring to the first day of the Russian attack. EU leaders are meeting for a second day to take stock of the situation in Ukraine, consider the economic impacts for the bloc and debate options for further sanctions. “We are discussing the ur…