How many American people are there in this world? Please vote. Here's a story which puts USA troops and contractors in Iraq and Afghanistan around 400,000 By the end of the 2010 budget year, there were nearly 200,000 contractor employees working in Afghanistan and Iraq compared to 202,100 U.S. military personnel, according to the commission. http://www.washingtonpost.com/wp-dyn/content/article/2011/02/22/AR2011022205739_2.html