just wanted to mention, since i see a lot of what is this canned food threads.
Once upon a time, when i was deployed far far away, these strange canned foods were great gifts from home, chickens burgers, hams, corned beef, biscuits, breads, etc.
Anything but spam, the army had plenty of spam 
They are still great for any situation where there is no place to, and nothing to, cook with