There is warfare in a physical and
Warfare in a spirtual
There is warfare in a digital, and
Warfare in a chemical

from Stephen Marley (Ft. Buju Banton & Damian Marley) – Jah Army Lyrics on Rap Genius

Meaning

There is warfare and conflicts that come in various shape and forms. The obvious one being physical, through violence, wars, etc.
Spiritual wars from people going through inner conflicts (should I cheat on my wife? should I rob this convenience store? should I make music that makes the youth more violent and prone to early pregnancy?)

Digital warfare since we have a generation of children so dumbed down by technology, RFID chips that track everything we do.

And chemical warfare from all the bombs we drop that poison populations.

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