Seth G. Jones. RAND, 27 March 2012.
By early 2012, there were approximately 432,000 counterinsurgency forces in Afghanistan – approximately 90,000 U.S. soldiers, 30,000 NATO soldiers, 300,000 Afghan National Security Forces, and 12,000 Afghan Local Police. In addition, the United States spent over $100 billion per year and deployed a range of sophisticated platforms and systems. The Taliban, on the other hand, deployed between 20,000 and 40,000 forces (a ratio of nearly 11 to 1 in favor of counterinsurgents) and had revenues of $100-$200 million per year (a ratio of 500 to 1 in favor of counterinsurgents).