The Special Inspector General for Afghanistan Reconstruction (SIGAR) has just released a report entitled Corruption in Conflict: Lessons from the U.S. Experience in Afghanistan, September 2016. This 164-page document contains 'lessons observed' (versus 'lessons learned') from the Afghan conflict. The report contains some recommendations on how to do stability operations in a remote, impoverished, conflict-ridden country. You can view the report (Adobe Acrobat PDF) at this link:
Read one writers thoughts on the report and corruption in Afghanistan in "How Corruption Defeated Afghan Reconstruction", by Matthew Gault, War is Boring, September 21, 2016.