why do you want to backpack??
i thought only westerners entranced by a romantic view of the East
did things like that. 
i suggest taking it easy and staying at a comfortable place. and
don't take too much luggage!
the closest thing i ever did to "backpacking" was trekking in
mountains of Nepal. I injured my knees, had diareahh (spelling?)
almost everyday, and almost fell off a mountain once. (God in His
mercy rescued my life, thankfully 
)
Once you enter the military, you'll probably have enough
"backpacking" to last you several lifetimes!
