Following a deal reached between the European Union and Turkey in March 2016, Turkey has been taking measures to prevent migrants – many of them fleeing the conflict in Syria – from reaching the EU, in exchange for European aid for migrants and refugees, and for relaxation of EU visa requirements for Turkish citizens. On Friday 28 February, after military losses in north-west Syria – where Turkey has been trying to create a safe area to resettle millions of Syrian refugees and to serve Turkish interests against the Kurds – those measures were suspended, resulting in large numbers of people attempting to cross into Greece and consequent clashes with Greek security forces.