My Dear General Mallory,
Last summer during one of our delightful rides I commented on the advice I would give a young officer going to war, based on my observation of what had constituted the success of the outstanding figures in the American Expeditionary Forces, and you asked me to write out what I had said. A discussion with Fox Conner this morning reminded me of my promise to do this, so here it is.
To be a highly successful leader in war four things are essential, assuming that you possess good common sense, have studied your profession and are physically strong.
When conditions are difficult, the command is depressed and everyone seems critical and pessimistic, you must be especially cheerful and optimistic.
When evening comes and all are exhausted, hungry and possibly dispirited, particularly in unfavorable weather at the end of a march or in battle, you must put aside any thought of personal fatigue and display marked energy in looking after the comfort of your organization, inspecting your lines and preparing for tomorrow.
Make a point of extreme loyalty, in thought and deed, to your chiefs personally; and in your efforts to carry out their plans or policies, the less you approve the more energy you must direct to their accomplishment.
The more alarming and disquieting the reports received or the conditions viewed in battle, the more determined must be your attitude. Never ask for the relief of your unit and never hesitate to attack.
I’m certain in the belief that the average man who scrupulously follows this course of action is bound to win great success. Few seemed equal to it in this war, but I believe this was due to their failure to realize the importance of so governing their course.