In March, the U.S. military went an entire calendar month without any deaths in Afghanistan, according to the Defense Department.
It's the first month with no combat or non-combat U.S. fatalities in Afghanistan since January 2007. Before that, the only month free of U.S. fatalities since military operations began there in October 2001 was July 2002, according to the DoD's online database.
In all, 2,309 U.S. servicemembers have died and 19,700 have been been wounded in Afghanistan.
The deadliest month there for the United States was August 2011, which had 71 deaths, according to the DoD.
American casualties have declined as the U.S. military presence has been reduced. Troops are shifting their focus to training Afghan forces.
There are about 33,000 U.S. troops in Afghanistan, down from a peak in 2011 of approximately 100,000 troops, according to The Military Times and the Associated Press.
This year, the U.S. military has had 14 U.S. deaths in Afghanistan. Last year, there were 132, down from 313 in 2012 and 415 in 2011.