Until now , Obama 's administration has been reluctant to assign a number to American troop strength in Afghanistan once the combat mission ends . White House official : cost of extended Afghanistan deployment $ 20 billion . Comment: Republican leaders criticize what they call a fixed timetable . There are roughly 32,000 American forces in Afghanistan now .
White House official : cost of extended Afghanistan deployment $ 20 billion . Comment: Republican leaders criticize what they call a fixed timetable . There are roughly 32,000 American forces in Afghanistan now .