FORT BENNING, Georgia (AP) — Army Col. Scott Jackson reaches out and grasps the hand of a male soldier. Their fingers interlaced, Jackson talks to the soldier for a few minutes and then asks if he feels uncomfortable. The soldier's answer: "A little bit."

That could be a problem.

As the Army creates a new training brigade, military leaders like Jackson aren't looking only at combat techniques and discipline, but also cultural biases and personality issues. The aim is to root out soldiers unfit for their unique mission. Re-enacting the test it in his Fort Benning, Georgia, office, Jackson expla...