Why is Bush sending troops when we keep dying ,?

I don't feel we need to still be over there , too many are dying & some soldieers are terrorizing instead of helping. Sadam is dead he is nolonger a threat. Bush is staarting to make other countires pissed off at the us. I know the world is ending but he doesn't have to encourage it. I feel for the families that do not see their loved ones & so many children have been left without parents . Bush can not rplace that , what can we do to get him out of office he is ruining our country