Those are not eight "troops" that have been killed in Afghanistan. A "troop" is a GROUP of soldiers. You do not call one soldier a "troop". One soldier is a "trooper".
And in my opinion it's mighty disrespectful to not say what they really are: those were eight SOLDIERS who were killed. INDIVIDUALS who had hopes and dreams and for whatever their various reasons chose to put those dreams aside so they could serve in the armed forces.
Those who sent them to Afghanistan and other places of meaningless war might be a bunch of asshat bastards but that doesn't mean we have any right or reason to disrespect these individuals, each one as unique and precious a creation of God as any of us are, who made a choice to be a SOLDIER.
In the future please refrain from referring to soldiers as "troops", unless you mean to convey the sense of troops plural, as in groups of groups of soldiers.