Hundreds of long-serving Defence Force personnel were told they had low potential and commitment to service when they were made redundant, newly released letters show.
The correspondence, released to Labour under the Official Information Act, was sent to 315 uniformed army, navy and air force personnel who were identified for redundancy in June 2011.
The redundancies were part of a Defence Force cost-cutting programme which disestablished uniformed roles in favour of civilian staff to help meet a government savings target of $400 million a year.
A report by Auditor-General Lyn Provost, released in January, found the way the redundancies were carried out had dented morale within the force and led to an increase in attrition.
The report noted staff at Defence Force headquarters were shocked at the time with the "obviously controversial and unfeeling tone" of the letters.