By the end of the Second World War in 1945, New Zealand had demonstrated a clear capacity not only to design, but to innovate in operational feeding systems suited to modern warfare. Wartime developments, drawing on both British and American models but adapted to New Zealand conditions, produced a battle ration system capable of supporting dispersed, mobile, and tropical operations. These systems addressed mobility, environmental challenges, and the requirement for compact, durable, and nutritionally adequate food.
Yet this wartime momentum was not sustained. In the post-war period, the urgency that had driven innovation dissipated, and no structured research and development programme emerged to carry those advances forward. As a result, between 1945 and 1987, the evolution of New Zealand Army ration packs was shaped less by continuous scientific development than by institutional adaptation, procurement constraints, and operational necessity.
Responsibility for ration packs reflects this shift. From approximately 1950 to 1979, they were managed by the Royal New Zealand Army Service Corps (RNZASC) as part of the wider feeding system. Following the 1979 reorganisation of supply responsibilities, this function transferred to the Royal New Zealand Army Ordnance Corps (RNZAOC), aligning ration packs more closely with materiel management and procurement systems.
Throughout this period, the terminology remained simple. In New Zealand service practice, they were known as ration packs, often informally abbreviated to “rat pack”. The latter term, Operational Ration Pack (ORP), did not enter common usage until the late 1980s. The term “Meal Ready to Eat (MRE)” was not part of New Zealand military usage in this period and is not a term traditionally used in the context of field rations, its appearance in New Zealand discourse being a relatively recent development reflecting the influence, and in some cases the Americanisation, of certain military functions and language.
While formally described in administrative and doctrinal terms, ration packs were experienced very differently by users. For the soldiers who carried and consumed them, they were not simply a feeding system, but a daily reality shaped by weight, taste, routine, and necessity. Alongside the issued ration pack, soldiers often supplemented their diet with “jack rations”, small unofficial or semi-official additions such as chocolate, biscuits, or other comfort items carried or acquired separately, reflecting both personal preference and the limitations of the issued scale. Across the period, a consistent pattern emerges in recollections: the issued pack was only the starting point. What mattered was how it was adapted in the field.
1945–1955: Continuity and Administrative Stability
The decade following the war was characterised by continuity rather than innovation. The Army’s focus lay in rebuilding a peacetime force, integrating Regular and Territorial components, and implementing compulsory military training from 1950.[1]
Within this framework, feeding remained an administrative function under the RNZASC. The system relied on fresh ration supply, centralised kitchens, and bulk provisioning. Ration packs existed, but only as ad hoc assemblies drawn from existing stores rather than as formally designed or standardised systems.[2]
There is little evidence of systematic ration development during this period. Instead, the wartime model gave way to a stable but essentially static approach suited to peacetime conditions.
1955–1962: Operational Pressures and the Trial Phase
From the mid-1950s, operational commitments in Southeast Asia, particularly in Malaya, exposed the limitations of traditional feeding systems. The 1958 Defence Review reinforced the requirement for a Regular force capable of limited war, emphasising mobility, dispersion, and independence from fixed infrastructure.[3]
These demands drove the first deliberate experimentation with modern ration packs. Between approximately 1958 and 1962, the Army trialled both four-man and one-man pack concepts.
The four-man pack retained group-feeding principles and proved unsuitable in operational conditions due to its weight, bulk, and inflexibility. By contrast, the one-man pack represented a conceptual shift. Although initially assembled from existing components, it demonstrated the practicality of individual sustainment, portability, and operational independence.
This period marked the transition from improvised feeding solutions to the requirement for a standardised individual ration system.
1962–1967: System Formation and the No.2 Pack
Between 1962 and 1967, the one-man concept was formalised into the No.2 ration pack, representing the first coherent system of its kind in New Zealand service.
By the mid-1960s, contents had been standardised, packaging had been improved, and issue procedures had been simplified. Archival evidence shows that development was deliberate but constrained, shaped by cost considerations and existing supply arrangements.[4] At the same time, inherent limitations in canned systems, particularly weight and packaging inefficiencies, were already recognised.[5]
At the user level, these limitations were not theoretical but immediate. The weight and bulk of canned components directly influenced how soldiers interacted with the system. Packs were routinely modified before use, with items removed, redistributed, or discarded entirely. Although the ration pack was designed as a complete, balanced unit, it was rarely carried or consumed in that form once issued.
This phase established the structural foundation of the New Zealand ration pack system, even as its limitations were becoming apparent.
The Mk 1–8 Ration Pack Series
The development of the No.2 pack is best understood through the Mk 1–8 series, introduced between 1959 and 1965. These marks reflect a process of controlled refinement rather than fundamental redesign.
This process of refinement occurred within a relatively fixed structural framework and did not fully account for user preference. In practice, menu acceptability varied widely. Certain items became consistently unpopular and were carried but not consumed, while others were prioritised, traded, or hoarded. The intended nutritional balance of the ration pack was therefore rarely fully realised, as individual preferences and informal exchange shaped consumption patterns within units.
Adjustments across the series focused on improving menus, refining packaging, and modifying contents in response to cost and supply constraints. While these changes enhanced usability and practicality, they did not alter the system’s underlying structure, which remained centred on canned components in a fixed format.
The Mk 1–8 series established a stable and reliable baseline that would remain in service, largely unchanged in concept, into the 1970s.
1960s–1970s: Parallel Development and System Expansion
Alongside the Mk series, the Army explored lightweight, dehydrated ration packs in the early 1960s. These offered advantages in reduced weight and bulk but introduced new constraints, particularly reliance on water and increased preparation time.[6]
As a result, they were adopted selectively rather than as replacements.
By the early 1970s, this experimentation had produced a three-tier ration system: the one-man pack as the primary self-contained system; the 10-man composite pack, derived from group-feeding concepts; and lightweight or dehydrated packs for specific operational contexts.
This layered structure reflects adaptation through addition rather than replacement, with new systems augmenting, rather than displacing, established ones.
This layered system also reflected how soldiers used ration packs in the field. Rather than adhering strictly to a single ration type, personnel often combined elements from different systems, supplementing issued packs with alternative components where available. The formal structure defined categories of use, but in practice these boundaries were fluid, shaped by operational context and individual adaptation.
1970–1985: Stagnation and the Limits of Incremental Development
Following the system formation of the 1960s, ration pack development entered a prolonged period of stagnation. Between approximately 1970 and 1985, there is little evidence of major redesign, doctrinal reassessment, or structured research and development.
Instead, changes were incremental and driven by practical considerations, including menu variation, packaging refinement, and substitution based on cost or availability. While these adjustments-maintained functionality, they did not address underlying structural limitations.
By this stage, the divergence between system design and user experience had become pronounced. Soldiers routinely adapted ration packs through what would later be termed “field stripping”, removing unwanted components and reducing weight before operations. Informal trading systems were well established, allowing individuals to reshape their ration into a more usable form. These practices were not formally recognised within the system but were widespread and effectively became an unofficial layer of ration management. This divergence is explored further in “Voices from the Field”.
Alongside these practices, soldiers frequently carried what were informally known as “Jack rations”, privately obtained or retained food items intended for personal use. The term, derived from the expression “I’m alright Jack”, reflects both individual provision and the expectation that such items might be shared within the group.
Jack rations functioned as an unofficial extension of the ration system, compensating for perceived shortfalls in variety, acceptability, or energy content. Their widespread use underscores that the issued ration pack, while structurally complete, was not considered sufficient in isolation under operational conditions.
Over time, these limitations became increasingly apparent. Issues such as limited variety, menu fatigue, declining acceptability, and nutritional imbalance emerged under sustained operational use.
In many respects, the Gruber pack can be understood as a response not only to operational conditions but to observed user behaviour. Issues such as menu fatigue, selective consumption, and the informal modification of ration packs had already been evident for years. The Gruber pack addressed these indirectly, improving variety and usability, but without fundamentally altering the underlying system structure.
1976: The Gruber Pack as a Corrective Measure
The introduction of the Gruber ration pack in 1976 provides clear evidence of these pressures. Developed in response to operational conditions experienced by 1st Battalion, Royal New Zealand Infantry Regiment (1 RNZIR) in Singapore, it was designed to supplement, rather than replace, the existing system.
Its purpose was to improve variety, nutritional intake, and overall acceptability, particularly in tropical conditions and during prolonged field use. Its introduction reflects a consistent pattern: where structural redesign was not feasible, adaptation occurred through supplementation.
The Gruber pack, therefore, highlights both the resilience and the limitations of the established system.
1979: Transition to RNZAOC
The transfer of responsibility for ration packs to the RNZAOC in 1979 marked a shift towards system-based materiel management. Ration packs were increasingly treated as part of a broader supply and procurement framework.
However, this institutional change did not immediately produce a technical redesign. The underlying structure of the ration system remained largely unchanged.
1985–1987: Transition to Scientific Design
By the mid-1980s, the cumulative limitations of the existing system prompted a renewed focus on structured research. Between 1985 and 1987, modern approaches to ration design were introduced, incorporating nutritional modelling, user feedback, and integrated system design.[7]
These developments confirmed long-recognised shortcomings and marked the beginning of a transition towards a more scientific, user-focused approach to ration development. Flowing directly from this work, a new generation of ration packs began to emerge, moving away from traditional tinned components towards modern packaging solutions. From the early 1990s, retort packaging, flexible heat-sterilised pouches, increasingly replaced cans, offering significant reductions in weight and bulk, improved durability, and enhanced operational suitability for dismounted and mobile forces.
Voices from the Field – Soldier Commentary to c.1990
(Insights drawn from retrospective commentary across social media forums and veteran discussion groups)
A review of discussions across social media platforms, including veteran forums and New Zealand military history groups, reveals a consistent body of informal feedback on ration pack use during the period up to 1990. While anecdotal in nature, these perspectives are notably consistent and provide valuable insight into how ration packs were actually used in practice.
“You never carried a full rat pack if you didn’t have to.”
Ration packs were routinely modified prior to deployment. Soldiers commonly removed tinned items, excess packaging, and non-essential components to reduce weight and bulk, indicating that the issued configuration was rarely carried intact.
“Some meals just stayed at the bottom of the pack.”
Menu acceptability varied significantly. Certain items were consistently avoided, sometimes carried for extended periods without consumption, while others were prioritised or traded. The intended nutritional balance was therefore frequently altered in practice.
“You’d swap half your pack before you even left.”
Informal trading was widespread. Soldiers exchanged components to assemble preferred combinations, creating an unofficial redistribution system operating alongside the formal ration scale.
“Tea was gold.”
Small comfort items, particularly tea and sugar, are consistently described as disproportionately important. Their value extended beyond nutrition, contributing to morale, routine, and a sense of normality in field conditions.
“Those tins were a mission on their own.”
Canned rations, while durable and reliable, are frequently described as heavy, awkward, and logistically inconvenient, particularly during dismounted operations.
“You could make it last longer if you had to.”
Ration packs were often extended beyond their intended duration. Consumption patterns were shaped by operational necessity rather than formal feeding cycles.
“Everyone had their own way of doing it.”
Despite standardisation in design and issue, there was no single method of use. Individual adaptation was universal, with soldiers developing personal approaches to carrying, preparing, and consuming rations.
Closely related to this was the widespread use of “Jack rations”, privately held food items carried in addition to issued packs. These typically included sweets, chocolate, and other high-energy or comfort foods. While not part of the formal ration scale, they were widely recognised and often subject to the same informal expectations of sharing and exchange.
Taken collectively, this commentary reinforces a consistent conclusion: ration packs, as designed, represented only the baseline system. Their effectiveness in the field depended on a layer of user-driven adaptation that was informal, unrecorded, and largely unaccounted for in formal development processes. This included not only the modification and redistribution of issued rations, but also their supplementation through privately held “Jack rations”, extending the system beyond its formal design.
Conclusion
Between 1945 and 1987, the development of New Zealand Army ration packs followed a clear but constrained trajectory. The 1950s were defined by experimentation, the 1960s by system formation, and the 1970s by stabilisation through incremental adaptation. By the mid-1980s, the limitations of this approach necessitated a return to structured, scientific design.
However, as both the formal development record and the user perspectives outlined in Voices from the Field demonstrate, this evolution cannot be understood solely through official pathways. Alongside design, procurement, and doctrinal intent existed a persistent and largely undocumented layer of user-driven adaptation.
In practice, the ration system operated across multiple layers. The issued ration pack provided the formal structure, but this was routinely modified through selective consumption and “field stripping”, reshaped through informal trading, and supplemented through privately held “Jack rations”. Together, these behaviours formed an unofficial but essential extension of the system, allowing it to function under real operational conditions.
Soldiers did not passively consume ration packs as designed. They actively interpreted, adjusted, and augmented them to meet the demands of weight, acceptability, and operational tempo. In doing so, they exposed both the strengths and the limitations of the system, often anticipating issues that would only later be addressed through formal development.
The history of New Zealand Army ration packs in this period is therefore not simply one of technical evolution, but of continuous interaction between system design and human use. The system defined what was issued; soldiers determined how it functioned.
This evolution was not one of continuous innovation, but of adaptation within constraint. Operational demands, procurement realities, and institutional structures shaped development at every stage. Only when these constraints became untenable did a more deliberate and analytical approach re-emerge.
Footnotes
[1] “H-19 Military Forces of New Zealand Annual Report of the General Officer Commanding, for period 1 June 1949 to 31 March 1950 “, Appendix to the Journals of the House of Representatives (24 May 1950 1950).
[2] “Military Forces of New Zealand Annual Report of the General Officer Commanding, for period 1 April 1955 to 31 March 1956,” Appendix to the Journals of the House of Representatives, 1956 Session I, H-19 (3 July 1956 1956).
[3] “H-19 Military Forces of New Zealand Annual Report of the General Officer Commanding, for period 1 April 1957 to 31 March 1958,” Appendix to the Journals of the House of Representatives (3 July 1958 1958).
[4] “Supplies: General- Ration Packs: Development and Production,” Archives New Zealand Item No R17189341 (1958 -1967).
[5] “Supplies: General- Ration Packs: Development and Production.”
[6] “Supplies: General- Ration Packs: Development and Production.”
[7] Bing David Soo, “Development of nutritionally balanced and acceptable army ration packs: a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Product Development at Massey University” (Massey University, 1987).
