How do I practice the occult in the military?

[CharlesD.Ward]

You don’t need an altar, just draw the sigils, charge them and open them

Here is everything you need to know about offerings:

How Does Making an Offering Actually Work?

It was both of them actually, and they revealed how food offerings work since many cannot fathom how a spirit could use food since they don’t eat. Offerings of food, drinks, tobacco: Spirits can’t eat like we do, however they are able to draw energy from these substances. When a human eats food, our body takes the nutrients and sugars and turns it into energy and vitamins and things we need to survive and run our bodies efficiently. A spirit can drain the same sugars and nutrients from these f…

Belial likes black coffee, I don’t know about the rest

Best option would be astral temple as DarkestKnight said