A US Marine soldier prepares before leaving for a combat, at camp Dwyer in the south of Helmand Province, southwest of capital Kabul on May 4, 2008. Suicides and "psychological mortality" among US soldiers who served in Iraq and Afghanistan could exceed battlefield deaths if their mental scars are left untreated, the head of the US Institute of Mental Health warned Monday.
(AFP/File/Massoud Hossaini)