Pashtuns and Oath Keepers

Some commentators are prone to point to Pashtunwali and the idiosyncrasies of Pashtun culture to explain why establishing a stable government in Afghanistan is so difficult. We don't need to look far to discover strains within U.S. political culture. This excerpt is from the Oath Keeper's website:

8. We will NOT obey orders to assist or support the use of any foreign troops on U.S. soil against the American people to “keep the peace” or to “maintain control” during any emergency, or under any other pretext. We will consider such use of foreign troops against our people to be an invasion and an act of war.

The Oath Keepers are a sovereignty movement composed of current and former law enforcement and military personnel.

I only bring this up to suggest cultural explanations are insufficient to explain incidence of conflict.