Also found in: Dictionary, Acronyms, Wikipedia. (OPerations SECurity) Determining what information is publicly available in the normal course of operations that can be used by a competitor or enemy to its advantage. OPSEC is a common military practice that is also applied to civilian projects such as the development of new products and technologies. The Official Definition.
What a short duration is, and how it exactly impacts MRE shelf life, is anyoneâs guess. Chilling MREs in the fridge undoubtedly extends the shelf life of MREs, however it is not specified by how much. Some sites selling MREs claim they last as long as 130 months (almost 11 years) at 60 F (15 C) .
MEALS, READY-TO-EAT. Quick Nutrition For Soldiers On The Go. MREs are the main operational food ration for the United States Armed Forces. It originated from the c-rations and k-rations from World War II, and later developed into MCI (Meal, Combat, Individual) rations used in Korea and Vietnam. In 1980 the MRE was developed and is still the U.S. Army's primary ration.