U.S. Vice President Joseph Biden visits Turkey, Ukraine marks twenty five years as an independent nation, and the Rio Olympics come to an end.

Presidents from Russia and Ukraine attend talks in Minsk; Iran reaches the deadline for providing information on its nuclear program; and Recep Tayyip Erdogan takes office as Turkey's new president.

Philadelphia hosts the Democratic National Convention, Turkey takes stock after a failed coup, and the Olympics draw nearer.

Sebastian Mallaby, the Paul A. Volcker senior fellow for international economics at CFR and a contributing columnist for the Washington Post, joins James M. Lindsay to discuss the collapsing currency…

U.S. Secretary of State Rex Tillerson visits Turkey, Hong Kong elects a new chief executive, and the sixtieth anniversary of the signing of the Treaty of Rome is marked.