Keywords: Assistant Secretary Thomas-Greenfield Poses for a Photo With Ghana's President Dramani Mahama.jpg en Assistant Secretary of State for African Affairs Linda Thomas-Greenfield poses for a photo with Ghana's President John Dramani Mahama before the Ghana Compact Signing Ceremony at the U S Department of State in Washington D C on August 5 2014 Leaders from across the African continent are in the nation's capital for a three-day U S -Africa Leaders Summit the largest event any U S President has held with African heads of state and government State Department photo/ Public Domain 2014-08-05 16 31 42 https //www flickr com/photos/statephotos/14839031612/ U S Department of State 38 895007 -77 049028 PD-USGov PD-USGov Uploaded with UploadWizard John Dramani Mahama Linda Thomas-Greenfield U S -Africa Leaders Summit |