In Mosul, reminders of the Islamic State's brutal rule include a school wall covered with drawings showing how militants executed their prisoners. The U.N. says the area around the city holds mass graves where thousands of people were buried.
North Korean leader Kim Jong Un attends the combined fire demonstration of the services of the Korean People's Army in celebration of its 85th founding anniversary in a photo released on April 26.
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Iraqi Foreign Minister Tariq Aziz in a photo from December 1998 as he stands at attention for the Iraqi national anthem at a conference in Baghdad. Aziz has reportedly died at age 79.
Izzat Ibrahim al-Douri, a former member of Saddam Hussein's inner circle (shown here in 2002), leads one of the Sunni armed factions helping ISIS in its fight against the Iraqi government.
Former President George W. Bush (right) and his father, former President George H.W. Bush, wave as they leave a family wedding in Washington, D.C., in May 2006.
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