Briefings are part of the demobilization process that the 182nd Infantry Regiment must go through at Camp Atterbury in Columbus, Ind. Tom Dreisbach/NPR hide caption

itoggle caption Tom Dreisbach/NPR

Afghan miners in a makeshift emerald mine in the Panjshir Valley in 2010. Reports suggest that Afghanistan is sitting on significant deposits of oil, gas, copper, iron, gold and coal, as well as a range of precious gems like emeralds and rubies. Currently these minerals are largely untapped and are still being mapped. Majid Saeedi/Getty Images hide caption

itoggle caption Majid Saeedi/Getty Images

Rachel Maddow hosts the nightly news talk show The Rachel Maddow Show on MSNBC. Bill Phelps/Courtesy of the author hide caption

itoggle caption Bill Phelps/Courtesy of the author

Members of the 182nd Infantry Regiment arrive in Indiana after spending a year in Afghanistan. They will spend about a week here before returning to their homes in New England. Tom Dreisbach/NPR hide caption

itoggle caption Tom Dreisbach/NPR

Gen. Peter Chiarelli, former vice chief of staff for the U.S. Army, says the Army lacks reliable diagnostic tools to screen for mental health. Susan Walsh/AP hide caption

itoggle caption Susan Walsh/AP

Then-Capt. Brent Clemmer said Staff Sgt. Robert Bales distinguished himself as a team leader in Clemmer's C Company, 2nd Battalion, 3rd Infantry Regiment during the Battle of Zarqa, Iraq. The faces of the rest of Bales' squad have been obscured. Courtesy Maj. Brent Clemmer hide caption

itoggle caption Courtesy Maj. Brent Clemmer

Edward Young, whose automotive transport business is based in Milford, Conn., arrives to pick up a car to be delivered to Pennsylvania from the Valenti auto dealership in Watertown, Conn. Rick Hartford/Hartford Courant hide caption

itoggle caption Rick Hartford/Hartford Courant

Traumatic brain injuries are most often caused by powerful blasts from improvised explosive devices. A roadside bomb explodes, and the concussive effect violently shakes the brain inside the skull. Stefano Rellandini/Reuters /Landov hide caption

itoggle caption Stefano Rellandini/Reuters /Landov

The Wounded Warrior Home Project is an inventive approach to military housing, serving the needs of wounded soldiers and their families as they continue to serve on active duty at Fort Belvoir, Va. Kainaz Amaria/NPR hide caption

itoggle caption Kainaz Amaria/NPR