Thousands of Iraqi soldiers take part in a training exercise led by the Spanish Army and under the guidance of the US military in the Basmaya camp in the Iraqi capital Baghdad on May 27, 2015. AFP PHOTO / ALI AL-SAADI (Photo credit should read ALI AL-SAADI/AFP/Getty Images)
GARMISCH-PARTENKIRCHEN, GERMANY - JUNE 08: U.S. President Barack Obama speaks to the media at the conclusion of the summit of G7 nations at Schloss Elmau on June 8, 2015 near Garmisch-Partenkirchen, Germany. In the course of the two-day summit G7 leaders discussed global economic, health, climate and security issues. (Photo by Sean Gallup/Getty Images)
COLMA, CA - FEBRUARY 1: A man wearing a hazardous materials suit walks through a decontamination shower during a weapons of mass destruction training workshop February 1, 2005 in Colma, California. Representatives from several San Mateo County police and fire departments took part in the one day training to prepare for a chemical or biological attack. (Photo by Justin Sullivan/Getty Images)
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