First paragraph from the link.

In writing this book, I have had a twofold purpose. In the first place, I have attempted to place on permanent record, primarily for the benefit of the members of the 23rd Battalion itself, their friends and relations, including, I trust, their descendants to the second and third generations, the part played by this unit in the Second World War. Secondly, I have tried to make this history something more than a chronicle of the life and battles of the 23rd Battalion by making it a study in morale. The writing of a unit history, especially of a faithful and true unit, needs no justification: in an age when wars are fought, not by professional soldiers but by virtually the whole nation, it sets down a segment of our national history; it records the achievements of New Zealand citizens turned soldiers; it contributes to the growth of regimental traditions; it commemorates the sacrifice of those who fell, and it may help to inspire infantry soldiers of the future.