As the old saying goes, "guests, like fish, begin to smell after three days." Because we have no status-of-forces-agreement with Afghanistan, we cannot even pose as guests as in Iraq, let alone welcome ones. After almost eight years in Afghanistan, it is hard to exaggerate how pungent must be our odor to Afghans.
The United States has achieved our objectives in Afghanistan. We ought to declare victory and bring our combat forces home. Due to our tendency to look after the tactical details and miss the proverbial forest for the trees, this critically important strategic realization is in danger of being missed.
Unfortunately, the US is not going to leave Afghanistan because one of the two major objectives has not yet been realized.
The drug trade, and flow of heroin, (from which so many profit so handsomely) is being protected.
Anyone remember the "Golden Triangle" from the Viet Nam days?
However, the pipelines (through which oil from the Middle East and Eurasia will be controlled) have not yet been installed because of the instability caused by the US/NATO occupation of Afghanistan.
And that may keep the US in Afghanistan nearly indefinitely until that objective is accomplished.