Along with the manifold military problems facing the troops in Afghanistan, there are some social issues that tend to boggle the minds of the western soldiers:

Western forces fighting in southern Afghanistan had a problem. Too often, soldiers on patrol passed an older man walking hand-in-hand with a pretty young boy. Their behavior suggested he was not the boy’s father. Then, British soldiers found that young Afghan men were actually trying to “touch and fondle them,” military investigator AnnaMaria Cardinalli told me. “The soldiers didn’t understand.”

[. . .]

Sociologists and anthropologists say the problem results from perverse interpretation of Islamic law. Women are simply unapproachable. Afghan men cannot talk to an unrelated woman until after proposing marriage. Before then, they can’t even look at a woman, except perhaps her feet. Otherwise she is covered, head to ankle.

“How can you fall in love if you can’t see her face,” 29-year-old Mohammed Daud told reporters. “We can see the boys, so we can tell which are beautiful.”

Even after marriage, many men keep their boys, suggesting a loveless life at home. A favored Afghan expression goes: “Women are for children, boys are for pleasure.” Fundamentalist imams, exaggerating a biblical passage on menstruation, teach that women are “unclean” and therefore distasteful. One married man even asked Cardinalli’s team “how his wife could become pregnant,” her report said. When that was explained, he “reacted with disgust” and asked, “How could one feel desire to be with a woman, who God has made unclean?”

It’s a telling point that western troops were committed to Afghanistan without being fully briefed on the social customs of the people for whom and among whom they’d be doing their jobs. Ignorance isn’t a solid basis for any kind of trust, and without gaining the trust of locals, the troops will always be at a severe informational disadvantage.