Terrorists want to divide us, they unite us even more," she wrote. During Thursday's Heads of State and Governments Summit, Ms Mogherini had sent a letter to European Council President Donald Tusk to update him on the EU's strategy to fight terrorism, which was reviewed at the suggestion of the leaders last February, immediately after the Paris shootings. "We will continue to act with urgency and determination in order to achieve the fastest possible impact on the ground. For this to work, we must all commit to closely coordinate internal and external actions on the one hand and the EU institutions and countries on the other, so as to enhance the impact of our joint efforts," Ms Mogherini wrote in the letter to Mr Tusk on Thursday. Eight days ago, on June 18, Ms Mogherini had also written about the issue to the foreign ministers of the 28 member countries. The statement said: "Seeing that the terrorist threat continues to grow, it is necessary to intensify our commitment to work together in our joint struggle against terrorism. Our approach should naturally target both measures to assure the safety of the citizens of the EU and of the partner countries and the respect and enforcement of our founding principles: rule of law, human rights, liberty and democracy." (AGI)