[img]http://d.yimg.com/a/p/ap/20100704/capt.7e7589de0c6e40d0b8dbd30921a62aa4-7e7589de0c6e40d0b8dbd30921a62aa4-0.jpg?x=130&y=86&q=85&sig=.4N0bbNKPDoSOH8scKVNUw--[/img]AP - Gen. David Petraeus formally assumed command of the 130,000-strong international force in Afghanistan on Sunday, declaring "we are in this to win" despite rising casualties and growing skepticism about the nearly 9-year-old war.