Estonian Prime Minister Kaja Kallas has called on her country’s partners in Europe and NATO to spend more money on defence in response to Russia’s war against in Ukraine. Estonia invests more than 3.2% of its gross domestic product in defence, Kallas said in Berlin on Tuesday. Partner countries should do the same, or risk provoking Russia by their weakness. “If they think that they can win, they will take a step,” Kallas said. “If they understand that we are strong enough they will not take the step towards NATO. And that’s why we have to make this collective effort really together.” She said …