Since the U.S. invasion began on March 20, 2003 (figures in parentheses are from last month):

• Number of U.S. troops killed in Afghanistan: 835 (802) *
• Number of Afghan civilians killed in 2009: estimates vary, Afghan Conflict Monitor reports 1,304 civilians were killed January-June 2009
• Number of U.S. troops killed in Iraq: 4,347 (4,334) **
• Number of Iraqi civilians killed in Iraq: 101,608 (101,338) **

* Figures for Afghanistan are from October 2001, when the war began, to Sept. 21

** Figures for Iraq are from March 2003, when the war began, to Sept. 21

Sources: U.S. Department of Defense, iraqbodycount.org