Afghan security forces in Wardak are armed and ready for Taliban attacks on the main road to the capital Kabul<br/> <br />But many are worried they won't be able to secure the whole region after US forces withdraw.<br/> <br />Afghanistan's President Hamid Karzai barred U.S. special forces from the province last month after residents complained they were torturing and killing civilians - allegations Washington strongly denies.<br/> <br />As the gateway to Kabul Wardak's mountains provide ideal staging grounds for suicide operations in the capital<br/> <br />One Afghan soldier says he has no doubt security will get a lot worse once the US troops pull out.<br/> <br />Whilst one resident says Afghan forces are not strong enough to stop attacks.<br/> <br />The US special forces are expected to play a major role in Afghanistan after most NATO combat troops withdraw by the end of 2014.<br/> <br />And Karzai's decision could complicate negotiations between the United States and Afghanistan over the scope of U.S. operations afte
