Militants loyal to Yemen's President Abed Rabbo Mansour Hadi take their positions in Taiz, Yemen, late last month after at least 45 people were killed in north Yemen after an airstrike hit a camp for internally displaced people.
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.
Syrian children listen to a teacher during a lesson in a temporary classroom in Suruc refugee camp on March 25 in Suruc, Turkey. The camp is the largest of its kind in Turkey with a population of about 35,000 Syrians who have fled the ongoing civil war in their country.
Carl Court/Getty Images
American journalist Ned Parker (foreground) is the Reuters bureau chief in Baghdad. He fled Iraq last week after receiving threats in response to reports on human rights abuses by Shiite militias allied with Iraq's government. He's shown here at Iraq's Foreign Ministry in 2007.
Courtesy of Ned Parker
Cardin, right, confers with Senate Foreign Relations Committee Chairman Sen. Bob Corker, R-Tenn. during a committee markup meeting on the proposed nuclear agreement with Iran Tuesday.
Win McNamee/Getty Images