mazar-i-sharif afghanistan germany defense minister say tuesday want boost german presence afghanistan first public indication berlin could accept u.s. call soldier help reverse territorial gain taliban insurgents germany currently 980 soldier station hindu kush mountains part nato mission train afghan security force second big national contingent unite state soldier especially trainers tell enough trainers could significantly good protective components security personnel defence minister ursula von leyen say visit northern afghan city mazar-i-sharif von leyen add german parliament would approve additional deployments minister member chancellor angela merkel conservatives say hop retain job new coalition government currently negotiate merkel hop forge another grand coalition center-left social democrats spd like one lead germany past four years spd generally cautious defense spend send german troop abroad u.s. president donald trump august authorize increase u.s. troop train afghan security force carry counter-terrorism operations hop reverse gain taliban insurgents compel agree peace talk monday von leyen criticize rapid reduction force since nato-led international security assistance force isaf wind afghanistan 2014 call longer-term commitment hindu kush mountains peak isaf mission around 150,000 foreign soldier deploy hindu kush around 17,000 10,000 americans germany increase upper limit afghanistan mandate 980 soldier 850 2016 time unite state countries reduce force von leyen call negotiations afghan government taliban say afghan security force could apply pressure taliban ready negotiate lead success long-term add germany could send soldier afghanistan defense minister