This is the Japanese version of the MRE, or meal’s ready to eat. In Japan, they’re known as Rescue or Survival Foods. They have a shelf live of 5 years or more.
source
Japan Survival Foods #2 – Eric Meal Time #384

This is the Japanese version of the MRE, or meal’s ready to eat. In Japan, they’re known as Rescue or Survival Foods. They have a shelf live of 5 years or more.
source