(NEWSER) – How many US troops should stay in Afghanistan after the NATO combat mission ends next year? For the first time, officials are now saying zero is an option. Commanders recommend keeping a force of up to 15,000 in the country, but Deputy National Security Adviser Ben Rhodes, speaking to reporters ahead of Hamid Karzai's meeting with President Obama later this week, says withdrawing all troops will be considered if conditions allow, Reuters reports.
