We overthrew the Taliban government in 2001 with less than 10,000 American troops. Why does it now seem that the more troops we send, the worse things get? If the Soviets bankrupted themselves in Afghanistan with troop levels of 100,000 and were eventually forced to leave in humiliating defeat, why are we determined to follow their example? Most importantly, what is there to be gained from all this? We’ve invested billions of dollars and thousands of precious lives – for what?