Jolie and Pitt arrive for the Global Summit

US actress and special UN envoy Angelina...US actress and special UN envoy Angelina Jolie (L) and her husband US actor Brad Pitt pose for pictures upon arrival on the fourth day of the Global Summit to End Sexual Violence in Conflict in London on June 13, 2014.  Hollywood star Angelina Jolie and British Foreign Secretary William Hague launched a four-day summit on ending rape in war, calling for an end to the "culture of impunity" and more prosecutions.  AFP PHOTO / CARL COURTCARL COURT/AFP/Getty Images

Carl Court/AFP/Getty

Angelina Jolie, the American actress and special UN envoy, and her husband actor Brad Pitt, arrive on the fourth day of the Global Summit in London to end sexual violence in conflict. Ms Jolie and William Hague, the British foreign secretary, launched the summit as they strive to end rape in war and the ‘culture of impunity’ and to call for more prosecutions