Smoke rises during airstrikes targeting Islamic State militants at the Mosul Dam outside Mosul, Iraq, on Monday. Kurdish forces say they have retaken the dam, but the militants insist they still have control. Khalid Mohammed/AP hide caption

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WikiLeaks founder Julian Assange (right) said he'll leave the Ecuadorian Embassy in London, at a news conference with Ecuador's Foreign Minister Ricardo Patino. Assange has been holed up at the embassy for two years. John Stillwell/AFP/Getty Images hide caption

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A Ukrainian MiG-29 fighter jet flies over Slovyansk, Ukraine, in May. Ukrainian officials acknowledged the same type of aircraft was shot down Sunday over the country's east. Alexander Ermochenko/AP hide caption

itoggle caption Alexander Ermochenko/AP

An aid worker takes a break on a big pile of food, which was brought to the small eastern Ukrainian city of Starobilsk by a humanitarian convoy. Anatolii Stepanov/AFP/Getty Images hide caption

itoggle caption Anatolii Stepanov/AFP/Getty Images

This installation at the Tower of London will ultimately feature 888,246 ceramic poppies, honoring the soldiers from Britain and the British colonies who died in World War I. Rich Preston/NPR hide caption

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A convoy purportedly carrying humanitarian aid is parked about 17 miles from the Ukrainian border, Rostov-on-Don region, Russia, on Friday. Ukrainian officials have insisted on inspecting the cargo over fears that the convoy might be a pretext for invasion. Pavel Golovkin/AP hide caption

itoggle caption Pavel Golovkin/AP