Know your Enemy.
"Be alert and of sober mind. Your enemy the devil prowls around like a roaring lion looking for someone to devour." - (1 Peter 5:8)
"For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms." - (Eph. 6:12)
Wear your armor.
"Put on the full armor of God, so that you can take your stand against the devil’s schemes." - (Eph. 6:11)
"No weapon formed against you shall prosper" -(Isaiah 54:17)
"I am sending you out like sheep among wolves. Therefore be as shrewd as snakes and as innocent as doves." - (Matthew 10:16)
No human being is your enemy.
Your warfare involves prayer, love, and becoming a blessing to those who hate you.
Lives may be lost in this battle, and your own life is most certainly one of them.
If blood must be shed it must be your own.
You must look out for the well-being of your fellow-soldiers, and your enemy.
You are a sheep, not a wolf. Trust in your Shepherd for protection.