Florida ,where you canned fish .before ac they had ice houses .One would have to can or dehydrate meat, fruits, vegetables and find a safe place to stockpile which is not hard if you have the smarts to do this. I remember when we did this back in 2000 as to be prepared in that just in case scenario. Even if one can not do so if they have faith in God He will provide manna and quail for those who are His own. It also helps if one knows how to live off the land.
You didn't store meat for months .
I can kill you,toss you in the woods,in weeks you are not gonna have any flesh but bones .
The environment here is that way .I posted a picture of the old cannery before ,fish was caught ,canned then and set by boat two new England and consumed with in days or it went bad . Dehydration isn't gonna make it last for months .
The military meals are dehydrated ,these have a shelf life of 6, months at best . Processed to the max