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www.sdstate.edu]
For those who like to read and arm themselves with knowledge, here is a link a friend just shared with me. It has loads of things to read up on. I am not authorizing any of it, so please feel free to check it out and see for yourself. You might want to check out the Laws of Manu (Manu Smriti) and Kautilya's Arthashastra (Chanakya neeti) to be able to understand the modes and mentalities of some of our foes.
ਸਤਿਗੁਰਬਚਨਕਮਾਵਣੇਸਚਾਏਹੁਵੀਚਾਰੁ॥