A senior defense official last month disclosed key elements of the U.S. military and allied supply routes into Afghanistan. David Sedney, assistant defense secretary for Afghanistan, Pakistan and Central Asia told the Senate Foreign Relations Committee that Afghanistan lacks rail lines and roads needed for supplying forces in Afghanistan through a new Northern Distribution Network (NDN), a system of roads used to truck in military supplies. The supply routes are the most significant strategic elements of the U.S. strategy of pacification of the Taliban and the bolstering of Afghan police and military forces.