'This book is about Greg Smith's tour of duty in Vietnam as a 21 year old Aussie Digger, serving as the Orderly Room Corporal in an Australian Cavalry Unit. It deals with a non-combatant soldier's Vietnam experience, its affect and aftermath.. " Pogo " is an Acronym, which stands for Personnel On Garrison Operations.' Source: http://www.gregjsmith.com/index.htm (Sighted 09/08/2008).