Army 1st Lt. Christian Gehrels relies on his interpreter to communicate with Afghans. After Lt. Gehrels and other U.S. troops are gone by the end of next year, Afghans assisting the coalition will be left with little protection. (Associated Press)

Army 1st Lt. Christian Gehrels relies on his interpreter to communicate with Afghans. After Lt. Gehrels and other U.S. troops are gone by the end of next year, Afghans assisting the coalition will be left with little protection. (Associated Press)