(Global News) – Retired lieutenant-general and senator Roméo Dallaire says the willingness of the so-called Islamic State to use child soldiers demonstrates that there are no limits to the atrocities the group could engage in — up to and including genocide. Dallaire, who served as commander of UNAMIR, the ill-fated United Nations peacekeeping force for Rwanda, witnessed and attempted to stop the mass killings that unfolded in the tiny African nation in 1994.