Turkish President Tayyip Erdogan said on Monday that the European Union has failed to fulfil its pledge to provide €3 billion (US$3.4 billion) of aid for migrants, a criticism that the EU said was “not correct and not helpful”. More than 1 million migrants entered the EU last year by taking boats from Turkey to Greece. The numbers taking that route have tumbled since Turkey agreed to prevent people from setting sail from its shores in return for EU countries approving a fund of...