Mu gitabu ciwe, "Rwanda, la fin du silence, témoignage d'un officier français" (Impera y'ukunuma, intahe y'umusirikare mukuru w'Ubufaransa), Guillaume Ancel agira ati: "Ndasaba mu bari barongoye Ubufaransa, nka Hubert Védrine, Alain Marie Juppé, Paul Quilès ngo basigure ivyabaye", abona biteye isoni: "Ikibabaje n'uko, kuruhande rumwe twakiza abantu, kurundi ruhande, ababahonya tukabaronsa ibirwanisho".
