Building a Warrior Ethos

The new administration has made much of the need to “build a warrior ethos” in the U.S. military, a worthy goal if pursued rationally and thoughtfully.  A good place to start is with the U.S. Army, which in every war suffers the highest casualties and, in the end, takes and holds the ground that usually determines victory.  In today’s Army, how do we encourage and incentivize our warrior leaders?