Voroshilov, Kliment
Warfare has become so much more complex that leaders and generals are no longer required to just think about their soldiers but many other factors need to be taken care of now that warfare is so advanced. the secret message was written by Voroshilov, Kliment Efremovich to the USSR and the red army shows all the divisions of war needed to be taken care of and constantly adjusted. The number of engineers, cavalry, infantry, air force, railroad troops, military schools, reserve units, air defenses etc.