Defense Secretary Ash Carter will welcome Afghan President Ashraf Ghani and Chief Executive Abdullah Abdullah to the Pentagon on Monday, March 23, 2015. Watch live on www.defense.gov as Carter and Ghani deliver remarks in the Pentagon center courtyard at 8 a.m., thanking service members and veterans who served in Afghanistan for their efforts and sacrifices. This file photo shows Carter and Ghani meeting at the presidential palace in Kabul, Afghanistan, Feb. 21, 2015.