The Washington Post reports: The landmark agreement that halted a torrent of migrants flowing from Turkey into Europe is nearing collapse in the wake of the failed Turkish coup and the subsequent nationwide crackdown.

Turkish and European leaders are threatening to abandon the deal — the Europeans because they say they are worried about widespread human rights abuses, the Turks because of European reluctance to fulfill a promise to drop visa restrictions for Turkish nationals.

Now, even as it detains tens of thousands of people in response to the coup attempt, Turkey has given the European Union an October deadline over the visa pledge — or it will walk away from its commitment to stem the flow.

An end to the agreement, which came after more than a million migrants and refugees entered in Europe in 2015, would mark another blow to the contentious relationship between the E.U. and Turkey, which is petitioning to join the bloc. It could also result in a fresh surge of asylum seekers traveling from Turkey, which would confront E.U. leaders with a new humanitarian and political dilemma after a relatively quiet spring and summer. [Continue reading…]