As U.S. combat troops leave Iraq , diplomats face challenge of building peace , says Daniel Serwer . He says U.S. needs to guarantee the solution Iraqis develop to their political impasse . TL;DR The United States is leaving Iraq, but its departure will not be a complete end for Iraq. $ 700 billion investment U.S. has made in new regime .
As U.S. combat troops leave Iraq , diplomats face challenge of building peace , says Daniel Serwer . He says U.S. needs to guarantee the solution Iraqis develop to their political impasse . He says spending on diplomacy protects $ 700 billion investment U.S. has made in new regime .