CAMP SALERNO, Afghanistan — A 19-year-old medic from Texas will become the first woman in Afghanistan and only the second female soldier since World War II to receive the Silver Star, the nation's third-highest medal for valor.

Army Spc. Monica Lin Brown saved the lives of fellow soldiers after a roadside bomb tore through a convoy of Humvees in the eastern Paktia province in April 2007, the military said.

After the explosion, which wounded five soldiers in her unit, Brown ran through insurgent gunfire and used her body to shield wounded comrades as mortars fell less than 100 yards away, the military said.