Maybe the USA No Longer Needs to Protect the Opium Crop in Afghanistan. With the Invention of Synthetic Fentanyl, the Flowers are Not Needed and THAT'S WHY WE ENDED THE WAR.
As we can see from this UN Chart, When the Russians were Fighting against the Afghans... The Opium Crop was Large. Then When the Afghans Ruled their own Country it was Small. Then The USA Came in Like MIRACLE GROW and the Opium Harvest Doubled!