"The United States and its partner countries are reducing military involvement in Afghanistan as Afghan security forces assume lead security responsibility throughout the country and the Afghan government prepares for presidential and provincial elections on April 5, 2014. The current international security mission terminates at the end of 2014 and will likely transition to a smaller mission consisting mostly of training the Afghanistan National Security Forces (ANSF). The number of U.S. forces in Afghanistan, which peaked at about 100,000 in June 2011, was reduced to a 'pre-surge' level of about 66,000 by September 2012, and is expected to fall to 34,000 in February 2014. The 'residual force' that will likely remain in Afghanistan after 2014 is expected to consist of about 6,000-10,000 U.S. trainers and counterterrorism forces, assisted by about 5,000 partner forces performing similar missions. […] Even if these economic efforts succeed, Afghanistan will likely remain dependent on foreign aid indefinitely. Through the end of FY2013, the United States provided nearly $93 billion in assistance to Afghanistan since the fall of the Taliban, of which more than $56 billion has been to equip and train Afghan forces. The anticipated U.S. aid for FY2014 is over $6 billion, including $4.7 billion to train and equip the ANSF. Administration officials have said that economic aid requests for Afghanistan are likely to continue roughly at recent levels through at least FY2017. See CRS Report RS21922, 'Afghanistan: Politics, Elections, and Government Performance', by Kenneth Katzman."
CRS Report for Congress, RL30588