Kagame's tactics and actions during the genocide have proved controversial. Western observers such as Dallaire and Luc Marchal, the senior Belgian peacekeeper in Rwanda at the time, have stated that the RPF prioritised taking power over saving lives or stopping the genocide. Scholars also believe that the RPF killed many Rwandan civilians, predominantly Hutu, during the genocide and in the months that followed. The death toll from these killings is in the tens or even hundreds of thousands. In her book "", written for Human Rights Watch, Rwanda expert Alison des Forges wrote that despite saving many lives, the RPF "relentlessly pursued those whom they thought guilty of genocide" and that "in their drive for military victory and a halt to the genocide, the RPF killed thousands, including noncombatants as well as government troops and members of militia". Human rights violations by the RPF during the genocide have also been documented in a 2000 report compiled by the Organisation of African Unity, and by Prunier in "Africa's World War".