In total, since the Sept. 11, 2001, terrorist attacks, the United States has spent $864 billion on both wars -- $642 billion in Iraq and $189 billion in Afghanistan -- according to new Pentagon estimates. The cost for war this year totals $145 billion, a decrease of $38 billion from last year, when spending hit $188 billion.

Fox News
http://www.foxnews.com/politics/2009/08/12/afghan-war-likely-absorb-potential-savings-withdrawal-iraq-analysts-say/