washington president donald trump open door monday beef u.s. force afghanistan provide detail send troop hasten conclusion america long war quick fix problem say bill roggio insurgency expert foundation defense democracies washington-based policy institute speak trump speech things continue look bleak time approximately 30-minute nationally televise address trump say would expand authority u.s. commanders target militant network sow violence chaos throughout afghanistan pave way increase 8,400 u.s. troop level afghanistan broad rule engagement part plan end military conflict begin 2001 u.s. officials say decline say many u.s. soldier deploy long u.s. force condition grind arbitrary timetables would guide duration u.s. military involvement say effective embrace open-ended u.s. deployment contrast expectations political base would extract unite state war estimate cost 700 billion claim live 2,400 u.s. service members trump rail war years find box taliban advance raise specter repeat 1996 islamist militants seize power provide al qaeda sanctuary plot sept. 11 2011 attack new york washington moreover afghan government plague ethnic political rifts corruption control less 60 percent country similar circumstances pave way taliban 1996 takeover choice lose lose win really option say jam dobbins serve u.s. special representative afghanistan pakistan presidency barack obama senior fellow rand corporation trump lose quickly withdraw lose slowly stand pat dobbins say add trump could lose marginally increase u.s. force ostensible goal trump strategy help afghan security force reverse taliban advance create military stalemate eventually would compel rebel leaders agree diplomatic resolution conflict yet trump indicate diplomacy would take back seat military operations say day effective military effort perhaps possible political settlement include elements taliban send u.s. troop could buy time afghan government increase legitimacy gain support afghans help negotiate end conflict say scott worden expert u.s. institute peace worden also speak trump speech say u.s. troop alone go outright defeat taliban military components strategy couple equal great emphasis manage politics afghanistan politics region obama try fail basically approach preside far large effort one point involve 100,000 u.s. troop considerable airpower score cia drone strike extremist sanctuaries pakistan billions dollars reconstruction democratization program obama also dedicate enormous diplomatic energy end war appoint special envoy coordinate negotiations trump eliminate post administration propose slash state department budget 30 percent leave score senior post vacant obama free five taliban leaders guantanamo bay allow rebel open office doha taliban free capture u.s. soldier bowe bergdahl refuse draw talk trump signal tough u.s. approach pakistan warn much gain cooperate afghanistan would immediately stop harbor islamist militants target u.s. troop officials provide detail plan convince pakistan u.s. officials long accuse pakistan fail pursue top leaders taliban ally haqqani network end sanctuaries support extremists elements powerful military army-run intelligence agency allegation islamabad deny despite expect u.s. troop hike end sight afghan war