The ONLY rule in war is win it asap.
Destroying the poppy fields will stick pins up the butts of the drug trade kingpins, and believe me, they’re criminals in government. Engineering the trade to enrich themselves.
And those kinds or ROE would actually jeopardize the Marines in Afghanistan.
The Talibs are good at using human shields to good effect.
How are you gonna penetrate a human shield without killing him/her, but the Talib using it?