Adam's military service in Afghanistan ... How much popular support does the Taliban have? ... Adam: If the US didn’t withdraw there would be no end in sight ... Why is the Afghan military struggling to hold off the Taliban? ... A primer on Afghanistan's largest ethnic groups ... What are the chances of a political settlement? ... Will withdrawing from Afghanistan bring terrorism to America? ... Adam: Withdrawing helps the US focus on existential threats like climate change ... Can Afghanistan’s neighbors help bring stability? ...