- Lemmon: US remains a nation at war
- Close to 10,000 US troops remain in Afghanistan
Gayle Tzemach Lemmon is a senior fellow at the Council on Foreign Relations and author of the New York Times best-seller, "Ashley's War: The Untold Story of a Team of Women Soldiers on the Special Ops Battlefield." The opinions expressed in this commentary are hers.
(CNN)This week an American Green Beret lost his life on the battlefield in Afghanistan. Staff Sgt. Adam S. Thomas died while on a "counterterrorism mission targeting ISIS," said Gen. John Nicholson, the senior US commander in the country.