Most of them are from Syria, Africa and South Asia. The International Organization for Migration says this is the highest migration flow since World War II.
In an NPR interview, Prime Minister Haider al-Abadi also calls on the U.S. to focus more firepower on Iraq's western border with Syria, saying Islamic State fighters can enter his country too easily.
U.S. Marine General and head of Southern Command John Kelly looks back with NPR's Renee Montagne on his time in Iraq, the war in Afghanistan, and what it means to serve the country.
Republicans have hammered President Obama for underestimating ISIS and naively allowing it to grow by leaving Iraq. But the withdrawal is only one factor in the rise of the extremists.
Officials are probing a possible "friendly fire" incident near Fallujah. They aren't speculating on how many Iraqis may have been killed. The airstrikes are part of a coalition effort against ISIS.
During the wars in Iraq and Afghanistan, open-air pits were used to incinerate refuse including plastics and human waste. Now, U.S. veterans are claiming these burn pits caused chronic ailments.