Since the project began almost two years ago , corps volunteers have focused on African American troops , preparing records in time for the unveiling in Washington this year of a special memorial to black soldiers who fought in the war .
<response> Since the project began almost two years ago , corps volunteers have focused on <misc>African American</misc> troops , preparing records in time for the unveiling in <location>Washington</location> this year of a special memorial to black soldiers who fought in the war . </response>