8 American troops have died in Afghanistan in the past 24 hours. One of the operations involved a suicide bombing at the gates of an elite police HQ in Qandahar, followed by an attack with small arms, leaving 3 US troops dead along with an Afghan policeman and 5 civilians.
Qandahar is the major southern Pashtun city (the greater metropolitan area has nearly a million people), and is the intended site of a concerted counter-insurgency campaign by US troops.