Pentagon Press Secretary John F. Kirby holds a briefing as US troops have pulled out from Bagram Air Force Base in Afghanistan, effectively ending troop presence in the country, and as Afghanistan officials allege they weren't informed about the specifics of the withdrawal. Stay Connected Forbes on Facebook: http://fb.com/forbes Forbes Video on Twitter: http://www.twitter.com/forbes Forbes Video on Instagram: http://instagram.com/forbes More From Forbes: http://forbes.com