Why would you want to join the Army? The Marines are better
I'd say it may be possible to do in the 6 weeks you have but you need to be really motivated, exercise a lot and of course eat the right foods.
I think beans would be a good source of energy that lasts a long time.
Several fruits throughout the day for a quick and healthy energy boost and lean meat for protein.
Nuts are also good energy but don't get salted or sugar coated ones.
Drink a lot of water and maybe some sports drink once a day. No sugar drinks.
Of course don't forget your veggies.
Jog, walk and hike at least twice a day and do sit-ups, push-ups, squats and pull-ups. That's likely what you'll do a lot of in boot camp anyway and probably more like 3 times a day. Unless you get punished a lot and have to do more
Maybe do lighter exercise later in the day so you don't feel so hungry as from heavy exercise...and then eat as light a meal as possible for dinner so that your body is spending energy for your body and not for digesting while you sleep.
Get up about 0500 to start your routine and be ready for bed by around 20 or 2100.
Yer in the Army now!
