TRANSLATION OF A LETTER FROM MARSHAL FOCH TO MAJOR GENERAL A. W.
GREELY, DATED MALSHERBE, OCTOBER 23, 1920


MY DEAR GENERAL:

Colonel Ardant du Picq was the exponent of _moral force_, the
most powerful element in the strength of armies. He has shown it to
be the preponderating influence in the outcome of battles.

Your son has accomplished a very valuable work in translating his
writings. One finds his conclusions amply verified in the
experience of the American Army during the last war, notably in the
campaign of 1918.

Accept, my dear General, my best regards.
F. FOCH.




PREFACE

BY FRANK H. SIMONDS
Author of "History of the World War," "'They Shall Not Pass'--Verdun,"
Etc.


In presenting to the American reading public a translation of a volume
written by an obscure French colonel, belonging to a defeated army, who