Demonstrators carry a giant Russian flag through Kharkiv, Ukraine, earlier this month. The city's population is a blend of Ukranians and Russians, many of whom share families across the Russian border. Sergey Kozlov/AP hide caption

itoggle caption Sergey Kozlov/AP

Iranian Foreign Minister Mohammad Javad Zarif (right) speaks during a joint press conference with his Swedish counterpart Carl Bildt in Tehran on Tuesday. Bildt is visiting to try to bolster the temporary nuclear deal on Iran's nuclear program. Behrouz Mehri/AFP/Getty Images hide caption

itoggle caption Behrouz Mehri/AFP/Getty Images