troops after 2009 when president obama made the change in strategy that it has really made a big difference in helmand province in particular, taking away the poppy crop, being able to destroy the poppy crop which were really a crash crop for the taliban. >> really what it has done is taken money out of the taliban's purse. so, therefore, they haven't been able to buy the materials that they need to supply the taliban in the area. they really no longer can face us man on man. >> the most striking figure, shep, since 2009, when president obama swimped strategy and added those 30,000 troops, two thirds of the 1700 u.s. service members killed were killed since 2009. >> shepard: well, the defense secretary is in brussels today and seemed to be reassuring nato that the united states is not heading for the exits. >> in fact, urging them not to do the same and telling them